Flora of North America species comparison

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Astragalus lentiginosus

freckled milk-vetch, specklepod milk-vetch, spotted locoweed
Habit Plants annual, biennial, or perennial, subacaulescent to caulescent, (0.4–)1–100 cm, glabrous or pubescent; from superficial or slightly subterranean root-crown.
Stems

prostrate, creeping, decumbent, ascending, or erect, glabrous, strigulose, villosulous, or pilose.
Leaves

1–17 cm;

stipules (1–)2–7 mm, submembranous;

leaflets (3–)11–27(or 29), blades suborbiculate, elliptic, oblong, ovate, obovate, lanceolate, oblanceolate, or linear, (1–)2–21(–25) mm, apex acute to emarginate, surfaces glabrous, glabrate, strigose, strigulose, strigulose-villosulous, pilosulous, tomentulose, or silvery-silky.
Racemes

(2 or)3–35(–48)-flowered, flowers ascending or spreading;

axis (0.3–)0.5–18(–26) cm in fruit, elongating only slightly;

bracteoles usually 0.
Peduncles

0.5–11(–14) cm.
Flowers

5.5–23 mm;

calyx cylindric or campanulate, (3.4–)3.8–12.5 mm, strigose, strigulose, or villosulous, tube 2.7–10 mm, lobes subulate or triangular, 0.5–5 mm;

corolla pink-purple to purple, ochroleucous, yellowish, or whitish, sometimes veined, suffused, or tipped with lavender or pink;

banner recurved 30–50°;

keel 6–16.4 mm.
Legumes

readily deciduous from receptacle when mature, except vars. mokiacensis and trumbullensis where firmly attached and falling while still attached to pedicel, ascending or spreading and incurved, green, sometimes red- or purple-mottled, usually becoming stramineous or brownish, usually incurved, sometimes ± straight, usually ± ovoid, less often oblong, lanceoloid, or linear, usually strongly inflated or bladdery-inflated, rarely not or scarcely so, 8–40(–48) × (3–)4–18(–19) mm, usually bilocular, sometimes semibilocular, leathery, papery, or papery-membranous, usually glabrous, sometimes puberulent, strigose, strigulose, villosulous, or villous-tomentulose; usually inflexed as a complete septum, rarely incomplete, seed-bearing flange either conspicuous or subobsolete; usually sessile, rarely shortly stipitate.
Seeds

(7–)10–42.

Astragalus lentiginosus
Distribution
from USDA
w North America; n Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 42 (42 in the flora).

P. A. Rydberg (1929) placed what is here treated as Astragalus lentiginosus in the broad sense in Cystium, recognizing 33 species. M. E. Jones (1923) treated it as a single species, A. lentiginosus, with 18 varieties. The numerous varieties occur in geologically young habitats in the western United States, barely entering northwestern Mexico and southwestern Canada (B. J. Knaus et al. 2005). Fruits and flowers both are needed to key most varieties successfully. D. Isely (1998) presented keys to the species by geographic region. Amplified fragment length polymorphism (AFLP) analysis discriminates varieties despite potentially confounding geographic patterns and has proven effective at inferring relationships (Knaus et al.).

At least some, and perhaps all, of the varieties contain swainsonine and are toxic to livestock (L. F. James and S. L. Welsh 1992).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Legumes not or scarcely inflated, ovoid, lanceo­loid, ellipsoid, or oblong, 10–32(–35) × (3–)3.7–8.5(–10) mm wide (longer than wide).
→ 2
2. Flowers 7.4–11 mm; corollas whitish or yellowish, sometimes faintly lilac; British Columbia, California, Idaho, Nevada, Oregon, Washington.
var. lentiginosus
2. Flowers (10–)12–20 mm; corollas pink- or red-purple, ochroleucous, or white, sometimes suffused or tipped with white, pink, or pink-purple; Arizona, California, Colorado, Nevada, Utah.
→ 3
3. Herbage silvery- or satiny-pubescent; legumes densely pubescent; Yuma Desert, Arizona, adjoining Colorado Desert of se California.
var. coulteri
3. Herbage green or subglabrescent; legumes gla­brous, strigulose, minutely pubescent, or puber­ulent; Arizona, Colorado, Nevada, Utah.
→ 4
4. Raceme axis elongating or not, (1–)2–12(–14.5) cm in fruit (if to 14.5 cm, then plants of Flagstaff, Arizona, and vicinity).
→ 5
5. Corollas pink-purple; Coconino, Mohave, and Navajo counties, Arizona (but not upper Verde Valley or Coconino Plateau), sw Colorado to s Utah.
var. palans
5. Corollas white or suffused or tipped with pink or pink-purple; upper Verde Valley and Coconino Plateau, Coconino, Gila, and Yavapai coun­ties, Arizona.
var. wilsonii
4. Raceme axis usually elongating, (1–)3–22 cm in fruit.
→ 6
6. Corollas ochroleucous; Maricopa County, Arizona.
var. maricopae
6. Corollas pink- or red-purple, some­times with pale or white wing tips; Nevada to w Texas including Arizona.
→ 7
7. Legumes papery-membranous, valves translucent.
→ 8
8. Plants clump-forming; seeds 18–22.
var. australis
8. Plants not clump-forming; seeds 21–31.
var. vitreus
7. Legumes stiffly papery or leath­ery, not translucent.
→ 9
9. Legumes subsessile to shortly stipitate, stipe 0.1–1 mm; leaflet blade surfaces usually strigose to strigulose, less commonly glabrate or glabrous adaxially; Mt. Trumbull, Mohave County, Arizona.
var. trumbullensis
9. Legumes sessile; leaflet blade surfaces glabrous adaxially; Arizona, Colorado, Nevada, Utah.
→ 10
10. Legumes spreading, declined, or spreading-ascending, ± straight to uniformly or hamately incurved, dehiscent on ground; corollas with purple wing tips; sw Colorado, n Arizona along and north of Colorado River to se Utah.
var. palans
10. Legumes usually ascending-erect to ascend­ing, rarely spreading, usually ± straight to incurved, rarely decurved, dehiscent on plant; corollas with usually pale or white wing tips; Beaver Dam Mountains, Washington County, Utah, Virgin Mountains, nw Mohave County, Arizona, and adjacent Clark County, Nevada.
var. mokiacensis
1. Legumes inflated to strongly or bladdery-inflated, usually globose, subglobose, or ovoid, rarely ellipsoid, obovoid, or lanceoloid, (6–)10–35(–48) × (4–)6–20 mm (length less than 1/2 width).
→ 11
11. Legumes obscurely stipitate, stipe 0.5–1.5 mm; corollas whitish; leaflet blades broadly obovate-cuneate or suborbiculate; Tooele County, Utah.
var. pohlii
11. Legumes sessile; corollas pink-purple, yellow, ochroleucous, or whitish, often tipped, veined, or suffused purple or pink; leaflet blades linear-elliptic to obovate, oval, or suborbiculate; California to Texas including sw Utah.
→ 12
12. Racemes lax in fruit, axes (2.5–)4–15(–16) cm.
→ 13
13. Flowers 9.1–12(–12.4) mm; nw Arizona, sw Utah, s Nevada, adja­cent California.
var. fremontii
13. Flowers 11–17(–18.5) mm; Cali­fornia to Texas including Nevada and Utah.
→ 14
14. Legumes stiffly papery or almost leath­ery, usually glabrous, rarely puber­ulent; Mohave County, nw Arizona.
var. ambiguus
14. Legumes thinly or stiffly papery, usually glabrous, strigulose, strigose, villosulous, or villous-tomentulose, rarely puberulent; California to w Texas including Arizona.
→ 15
15. Corollas usually white, ochroleucous, creamy yellow, or greenish yellow to green­ish white, sometimes pink-purple or pale.
→ 16
16. Petals poorly graduated, banner only slightly longer than nearly equal wings and keel; legumes usually glabrous, rarely minutely strigulose; Arizona, Nevada.
var. yuccanus
16. Petals well-graduated, banner much longer than wings, wings well sur­passing keel; legumes villosulous; California.
var. nigricalycis
15. Petals pink-purple.
→ 17
17. Plants of deserts in California and Nevada.
→ 18
18. Herbage usually cin­ereous, some­times green or silky-canescent (not silvery); calyx lobes 1–1.4(–1.5) mm.
var. variabilis
18. Herbage silvery-canescent or silvery- or white-silky; calyx lobes 1.4–2.9 mm.
→ 19
19. Plants winter annual or short-lived peren­nial; herb­age hairs to 0.7–1.2 mm; Coachella Valley, California.
var. coachellae
19. Plants perennial; herbage hairs to 1.1–2 mm; Eureka Valley, Inyo County, California, and Nye County, Nevada.
var. micans
17. Plants of interior states (Arizona, Nevada, New Mexico, Texas, Utah).
→ 20
20. Plants clump-forming; flowers (13.2–)14.5–18 mm; s of Mogollon Rim, s Arizona, eastward to w Texas.
var. australis
20. Plants not clump-forming; flowers 11–17 mm; north and west of Colorado River in Arizona, to Utah, Nevada, and California.
→ 21
21. Legumes usually glabrous, rarely puberulent; herbage villosulous; wc Nevada.
var. kennedyi
21. Legumes glabrous, strigulose, or strigose-villosulous; herbage not villosulous; Arizona, California, Nevada, Utah.
→ 22
22. Herbage green, stems glabrous or glabrate; legumes glabrous, subtranslucent; w Kane and e Washington counties, Utah, and Mohave and Coconino counties, Arizona, not extending onto North Rim of Grand Canyon.
var. vitreus
22. Herbage cinereous or green, stems ashy-canescent or green; legumes strigulose or strigose-villosulous, opaque; Arizona, Califor­nia, Nevada, Utah.
→ 23
23. Corollas pale purple; Arizona, Clark County, Nevada, Utah.
var. stramineus
23. Corollas pink- or magenta-purple; Cali­fornia, Nye County, Nevada.
var. variabilis
12. Racemes compact in fruit (except var. salinus, sometimes var. wahweapensis), axes (0.3–)1–5.5(–9) cm.
→ 24
24. Flowers 7.4–15 mm.
→ 25
25. Plants of the Columbia and Great basins, ne California and Nevada north and eastward of Lake Tahoe, north to British Columbia and east to Montana, Wyoming, and Utah.
→ 26
26. Stems prostrate; racemes flori­fer­ous from all but proximal­most nodes; Ruby Mountains, Nevada.
var. multiracemosus
26. Stems decumbent, prostrate, dif­fuse, erect, or ascending; racemes floriferous from middle to distal­most nodes or throughout; not Ruby Mountains, Nevada.
→ 27
27. Legumes stiffly papery, opaque, or nearly so.
→ 28
28. Legumes usually thinly strigulose, rarely puber­ulent; British Columbia to ne California and s Idaho.
var. lentiginosus
28. Legumes glabrous; moun­tains of e Nevada, extreme w Utah.
var. scorpionis
27. Legumes thinly papery or papery-membranous, often translucent.
→ 29
29. Leaflet blade surfaces strigulose-villosulous, some hairs spreading or sinuous; n Nevada.
var. macrolobus
29. Leaflet blade surfaces glabrate to densely strig­ulose, hairs ap­pressed or subappressed; wide­spread, including n Nevada.
→ 30
30. Plants 6–30(–45) cm; racemes com­paratively loose, not cylindric or globose in fruit; stems ascending to erect, mostly unbranched; widespread.
var. salinus
30. Plants 20–50 cm; racemes dense, cylindric or globose in fruit; stems prostrate to weakly ascending, branched proximally; nw Nevada, adjoining California and Oregon.
var. floribundus
25. Plants of ec, se California (southward from Lake Tahoe) and sw Nevada (Spring [Charleston] and White mountains).
→ 31
31. Legumes with linear- or subulate-tubular, cusplike beaks; s Sierra Nevada, California, and Charleston Peak, Nevada.
var. kernensis
31. Legumes with deltoid or triangular beaks; California, Nevada.
→ 32
32. Plants 30–100 cm; legumes with decurved beaks; alkaline flats at eastern foot of Sierra Nevada from Inyo southward to Los Angeles County, California.
var. albifolius
32. Plants (1–)3–30 cm; legumes with incurved or erect beaks; mountain slopes and flats, California, Nevada.
→ 33
33. Plants of Sierra Nevada and Inyo and White mountains.
→ 34
34. Herbage loosely strigulose or villosulous; leaves 1.5–5.5 cm; leaflets (9–)15–21, crowded; Sierra Nevada.
var. ineptus
34. Herbage subappressed-strigulose; leaves 4–9 cm; leaflets (13–)17–27, distant; Inyo and White mountains.
var. semotus
33. Plants of San Gabriel and San Bernardino mountains.
→ 35
35. Flowers 10.4–13(–14.5) mm; herbage green or greenish; San Bernardino Mountains.
var. sierrae
35. Flowers 9–10.5 mm; herbage cinereous or silvery-canescent; San Gabriel Mountains.
var. antonius
24. Flowers 10.4–21.4 mm.
→ 36
36. Plants of South Coast Ranges and San Bernardino Mountains, California.
→ 37
37. Legumes papery; San Bernardino Mountains.
var. sierrae
37. Legumes leathery or stiffly papery; South Coast Ranges (Mount Hamilton to Mount Pinos).
var. idriensis
36. Plants not of South Coast Ranges or San Bernardino Mountains, Californa.
→ 38
38. Corollas usually white, rarely purple; ne California, nw Colorado, s Idaho, ne Nevada, e Oregon to w Wyoming, n Utah.
var. platyphyllidius
38. Corollas usually pink-purple, rarely whitish; Arizona, California, Colorado, Nevada, New Mexico, Texas, Utah.
→ 39
39. Corollas pale violet; ec New Mexico, Texas Panhandle.
var. higginsii
39. Corollas usually purple or pink-purple, rarely whitish, sometimes with pale, striate eye; Arizona, California, Colorado, Nevada, Utah.
→ 40
40. Plants 70–100 cm; stems pros­trate; plants of moist, alkaline flats, w Nevada, adjacent California.
→ 41
41. Leaflets (9–)15 or 17, ter­minal leaflet 7–15 mm.
var. sesquimetralis
41. Leaflets 3 or 5, terminal leaflet 14–30 mm.
var. piscinensis
40. Plants 5–40(–80) cm; stems usually ascending, spread­ing, or decumbent, rarely pros­trate; plants of dry habitats, Arizona, Colorado, Nevada, New Mexico, Utah.
→ 42
42. Stems decumbent or weakly ascending; calyx lobes (2.5–)3–5 mm; plants often growing with ponderosa pine, North Rim and n wall of Grand Canyon, Coconino County, Arizona.
var. oropedii
42. Stems decumbent, spreading, prostrate, or incurved-ascending; calyx lobes (1.2–)1.4–3.8(–4) mm; Arizona, Colorado, Nevada, New Mexico, Utah.
→ 43
43. Legumes plumply ovoid or subglobose, beaks 2.5–5 mm, bilocular; lime­stone mountains of ec Nevada.
var. latus
43. Legumes usually ovoid-acuminate, ellip­soid, ovoid, or lanceoloid-ovoid, rarely subglobose, beaks (3–)4–15 mm, usually unilocular; Arizona, Colorado, Nevada, New Mexico, Utah.
→ 44
44. Legumes thinly papery; seeds 13–20; elevations (1800–)2400–3500 m; c, wc Nevada.
var. toyabensis
44. Legumes thinly or stiffly papery or leathery (sometimes thinly papery in var. wahweapensis); seeds (20–)24–40; elevations 1400–2300 m; Arizona, Colorado, Nevada, New Mexico, Utah.
→ 45
45. Legumes 23–34 × 6–15 mm, stiffly papery or almost leathery; Box Elder, Millard, and Tooele counties, Utah.
var. negundo
45. Legumes (10–)14–30(–40) × (6.5–)8–18 mm; thinly or stiffly papery or leathery; Arizona, Colorado, Nevada, New Mexico, Utah.
→ 46
46. Legumes usually strongly incurved, beaks lanceoloid-acuminate, 6–15 mm; c Utah to c Nevada.
var. chartaceus
46. Legumes slightly or strongly incurved, beaks broadly triangular or deltoid, (3–)4–15 mm; n Arizona to c New Mexico, extreme sw Colorado, se Utah.
→ 47
47. Legumes thinly papery to almost leath­ery; racemes compact to loose, axes 1.5–5.5(–7) cm in fruit; sc Utah and n Arizona.
var. wahweapensis
47. Legumes stiffly papery or leathery; racemes compact, axes 1–4(–6) cm in fruit; c to n Arizona to c New Mexico and extreme sw Colorado.
var. diphysus
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi
Sibling taxa
A. accidens, A. accumbens, A. ackermanii, A. acutirostris, A. adanus, A. aequalis, A. agnicidus, A. agrestis, A. albens, A. albulus, A. allochrous, A. alpinus, A. altus, A. alvordensis, A. amblytropis, A. americanus, A. amnis-amissi, A. amphioxys, A. ampullarioides, A. ampullarius, A. andersonii, A. anisus, A. anserinus, A. applegatei, A. aquilonius, A. aretioides, A. argophyllus, A. aridus, A. arizonicus, A. arrectus, A. arthurii, A. asclepiadoides, A. asotinensis, A. asymmetricus, A. atratus, A. atropubescens, A. atwoodii, A. austiniae, A. australis, A. barnebyi, A. barrii, A. beathii, A. beatleyae, A. beckwithii, A. bernardinus, A. bibullatus, A. bicristatus, A. bisulcatus, A. bodinii, A. bolanderi, A. bourgovii, A. brandegeei, A. brauntonii, A. brazoensis, A. breweri, A. californicus, A. callithrix, A. calycosus, A. camptopus, A. canadensis, A. caricinus, A. casei, A. castaneiformis, A. castetteri, A. ceramicus, A. cerussatus, A. chamaeleuce, A. chamaemeniscus, A. chinensis, A. chloödes, A. chuskanus, A. cibarius, A. cicer, A. cimae, A. claranus, A. clevelandii, A. cliffordii, A. cobrensis, A. coccineus, A. collinus, A. coltonii, A. columbianus, A. concordius, A. congdonii, A. conjunctus, A. consobrinus, A. contortuplicatus, A. convallarius, A. cottamii, A. crassicarpus, A. cremnophylax, A. cronquistii, A. crotalariae, A. curtipes, A. curvicarpus, A. cusickii, A. cutleri, A. cyaneus, A. cymboides, A. deanei, A. debequaeus, A. desereticus, A. desperatus, A. deterior, A. detritalis, A. diaphanus, A. didymocarpus, A. distortus, A. diversifolius, A. douglasii, A. drabelliformis, A. drummondii, A. duchesnensis, A. eastwoodiae, A. egglestonii, A. emoryanus, A. endopterus, A. ensiformis, A. episcopus, A. equisolensis, A. eremiticus, A. ertterae, A. eucosmus, A. eurekensis, A. eurylobus, A. falcatus, A. feensis, A. filipes, A. flavus, A. flexuosus, A. fucatus, A. funereus, A. gambelianus, A. geyeri, A. gibbsii, A. giganteus, A. gilensis, A. gilmanii, A. gilviflorus, A. glycyphyllos, A. gracilis, A. grayi, A. gypsodes, A. hallii, A. hamiltonii, A. harrisonii, A. heilii, A. henrimontanensis, A. holmgreniorum, A. hoodianus, A. hornii, A. howellii, A. humillimus, A. humistratus, A. hyalinus, A. hypoxylus, A. inflexus, A. insularis, A. inversus, A. inyoensis, A. iodanthus, A. iodopetalus, A. iselyi, A. jaegerianus, A. jejunus, A. johannis-howellii, A. kelseyae, A. kentrophyta, A. kerrii, A. knightii, A. laccoliticus, A. lancearius, A. laxmannii, A. layneae, A. leibergii, A. lemmonii, A. lentiformis, A. leptaleus, A. leptocarpus, A. leucolobus, A. limnocharis, A. lindheimeri, A. linifolius, A. loanus, A. lonchocarpus, A. lotiflorus, A. lutosus, A. lyallii, A. macrodon, A. magdalenae, A. malacoides, A. malacus, A. megacarpus, A. michauxii, A. microcymbus, A. microcystis, A. microlobium, A. micromerius, A. miguelensis, A. minthorniae, A. misellus, A. miser, A. missouriensis, A. moencoppensis, A. mohavensis, A. mollissimus, A. molybdenus, A. monoensis, A. montii, A. monumentalis, A. mulfordiae, A. multiflorus, A. musiniensis, A. naturitensis, A. neglectus, A. nelsonianus, A. neomexicanus, A. nevinii, A. newberryi, A. nidularius, A. nothoxys, A. nudisiliquus, A. nutans, A. nutriosensis, A. nuttallianus, A. nuttallii, A. nutzotinensis, A. nyensis, A. obcordatus, A. obscurus, A. oniciformis, A. oocalycis, A. oocarpus, A. oophorus, A. oreganus, A. osterhoutii, A. oxyphysus, A. pachypus, A. palmeri, A. panamintensis, A. pardalinus, A. parryi, A. pattersonii, A. pauperculus, A. paysonii, A. peckii, A. pectinatus, A. perianus, A. phoenix, A. pictiformis, A. pinonis, A. piscator, A. piutensis, A. plattensis, A. platytropis, A. polaris, A. pomonensis, A. porrectus, A. praelongus, A. preussii, A. proimanthus, A. proximus, A. pseudiodanthus, A. pterocarpus, A. pubentissimus, A. pulsiferae, A. puniceus, A. purshii, A. pycnostachyus, A. racemosus, A. rafaelensis, A. rattanii, A. ravenii, A. recurvus, A. reflexus, A. remotus, A. reventiformis, A. reventus, A. riparius, A. ripleyi, A. robbinsii, A. rusbyi, A. sabulonum, A. sabulosus, A. salmonis, A. saurinus, A. scaphoides, A. schmolliae, A. sclerocarpus, A. scopulorum, A. sepultipes, A. serenoi, A. sericoleucus, A. serpens, A. sesquiflorus, A. sheldonii, A. shevockii, A. shortianus, A. siliceus, A. simplicifolius, A. sinuatus, A. solitarius, A. sophoroides, A. soxmaniorum, A. spaldingii, A. sparsiflorus, A. spatulatus, A. speirocarpus, A. straturensis, A. striatiflorus, A. subcinereus, A. subvestitus, A. succumbens, A. tegetarioides, A. tener, A. tennesseensis, A. tephrodes, A. terminalis, A. tetrapterus, A. thurberi, A. tibetanus, A. tidestromii, A. tiehmii, A. titanophilus, A. toanus, A. toquimanus, A. tortipes, A. traskiae, A. tricarinatus, A. trichopodus, A. tridactylicus, A. troglodytus, A. tweedyi, A. tyghensis, A. umbellatus, A. umbraticus, A. uncialis, A. utahensis, A. vaccarum, A. vallaris, A. vexilliflexus, A. villosus, A. wardii, A. waterfallii, A. webberi, A. welshii, A. wetherillii, A. whitneyi, A. williamsii, A. wingatanus, A. wittmannii, A. woodruffii, A. wootonii, A. wrightii, A. xiphoides, A. yoderwilliamsii, A. zionis
Subordinate taxa
A. lentiginosus var. albifolius, A. lentiginosus var. ambiguus, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. higginsii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. macrolobus, A. lentiginosus var. maricopae, A. lentiginosus var. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus
Name authority Douglas in W. J. Hooker: Fl. Bor.-Amer. 1: 151. (1831)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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