yucca freckled milkvetch, yucca milkvetch
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freckled milkvetch, Mount San Antonio milkvetch, San Antonio milk vetch
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Plants winter-annual or short-lived perennial, clump-forming, 15–60(–100) cm. |
Plants perennial, 7–30 cm, herbage cinereous or silvery-canescent. |
erect and ascending. |
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(5–)7–16 cm; leaflets 13–21(–25), blades broadly elliptic, oval, rhombic-obovate, or obovate, (4–)6–21 mm, apex retuse or emarginate. |
3–8 cm; leaflets 11–19(or 21), blades obovate or elliptic, 2.5–11 mm, apex obtuse or emarginate. |
loosely (12–)15–32-flowered, lax and open in fruit; axis early elongating, (4.5–)6–14 cm in fruit. |
10–15-flowered, short and compact in fruit; axis 0.5–4(–5) cm in fruit. |
(3–)5–10 cm. |
(1–)2–5.5 cm. |
11–15.6 mm; calyx 6–7.5 mm, tube 4.4–5.7 mm, lobes (1.3–)1.5–2.4 mm; corolla white or ochroleucous, concolorous, sometimes fading pale bluish, petals poorly graduated, banner slightly longer than wings, wings and keel nearly equal length. |
9–10.5 mm; calyx 4.2–5.5 mm, tube 3.2–4 mm, lobes 0.8–1.4 mm; corolla purple. |
stramineous, plumply ovoid-acuminate or subglobose, strongly inflated, 15–25(–32) × 10–18 mm, bilocular, papery-membranous, subtranslucent, usually glabrous, rarely minutely strigulose; beak 3–7 mm, unilocular. |
mottled becoming stramineous, plumply ovoid-acuminate or subglobose, bladdery-inflated, 14–22(–30) × 10–16(–18) mm, papery, strigulose; beak erect, triangular, 3–6 mm, unilocular. |
17–26. |
20–26. |
= 22. |
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Flowering Feb–May. |
Flowering late Apr–Jul. |
Open sandy plains, sandy or rocky washes, gulches in foothills of desert mountains, with Larrea and in yucca-grasslands. |
Ponderosa pine forests. |
500–1100 m. (1600–3600 ft.) |
1500–2600 m. (4900–8500 ft.) |
AZ; NV |
CA |
Variety yuccanus occurs in west-central Arizona, barely entering Nevada in the southern tip of Clark County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety antonius, from the eastern end of the San Gabriel Mountains in eastern Los Angeles and adjacent San Bernardino counties, is the homologue of var. sierrae, from which it differs by its much denser pubescence and mostly flat leaflets (D. Isely 1998). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
FNA vol. 11. |
FNA vol. 11. |
Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus |
Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus |
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. albifolius, A. lentiginosus var. ambiguus, 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 |
M. E. Jones: Contr. W. Bot. 8: 3. (1898) |
Barneby: Leafl. W. Bot. 4: 100, plate 2, figs. 7–9. (1945) |
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