FNA: Astragalus lentiginosus var. micans vs. Astragalus lentiginosus var. antonius

	Astragalus lentiginosus var. micans	Astragalus lentiginosus var. antonius
	freckled milkvetch, shining freckled milkvetch, shining milk vetch	freckled milkvetch, Mount San Antonio milkvetch, San Antonio milk vetch
Habit	Plants perennial, clump-forming, 20–40 cm, herbage silvery- or white-silky, hairs 1.1–2 mm.	Plants perennial, 7–30 cm, herbage cinereous or silvery-canescent.
Leaves	4.5–9.5 cm; leaflets 11–17, blades usually narrowly to broadly obovate or ovate, rarely rhombic-suborbiculate, 5–14 mm, apex truncate-emarginate to subacute.	3–8 cm; leaflets 11–19(or 21), blades obovate or elliptic, 2.5–11 mm, apex obtuse or emarginate.
Racemes	loosely (12–)20–35-flowered, lax and open in fruit; axis (3.5–)4.5–10(–15) cm in fruit.	10–15-flowered, short and compact in fruit; axis 0.5–4(–5) cm in fruit.
Peduncles	4.5–9 cm.	(1–)2–5.5 cm.
Flowers	12.2–14.3 mm; calyx 6–7.6 mm, tube 4.5–4.9 mm, lobes 1.4–2.6 mm; corolla pink-lavender.	9–10.5 mm; calyx 4.2–5.5 mm, tube 3.2–4 mm, lobes 0.8–1.4 mm; corolla purple.
Legumes	green, unmottled, obliquely ovoid, inflated, 15–20 × 8–10 mm, bilocular, stiffly papery, densely silky-villous-tomentulose; beak 2.5–4 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.
Seeds	23–28.	20–26.

	Astragalus lentiginosus var. micans	Astragalus lentiginosus var. antonius
Phenology	Flowering Apr–Jun.	Flowering late Apr–Jul.
Habitat	Forming large clumps over low slopes of mobile dunes.	Ponderosa pine forests.
Elevation	900–1000 m. (3000–3300 ft.)	1500–2600 m. (4900–8500 ft.)
Distribution	CA; NV [BONAP county map]	CA [BONAP county map]
Discussion	Variety micans is a local adjunct of the variable var. variabilis (D. Isely 1998), restricted to the southern end of Eureka Valley in Inyo County, California, and adjacent to Big Dune and in the Amargosa Desert, near Lathrop Wells in Nye County, Nevada. Isely questioned its recognition at varietal rank, initially considering it a local dune-specialized ecotype. Although it is ordinarily a strong perennial, some plants are evidently short-lived, a feature shared with var. coulteri. Variety micans is in the Center for Plant Conservation’s National Collection of Endangered Plants. (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.)
Source	FNA vol. 11.	FNA vol. 11.
Parent taxa	Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus	Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus
Sibling 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. 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	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
Name authority	Barneby: Leafl. W. Bot. 8: 22. (1956)	Barneby: Leafl. W. Bot. 4: 100, plate 2, figs. 7–9. (1945)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Astragalus lentiginosus var. micans

Astragalus lentiginosus var. antonius

freckled milkvetch, shining freckled milkvetch, shining milk vetch

freckled milkvetch, Mount San Antonio milkvetch, San Antonio milk vetch

Habit

Plants perennial, clump-forming, 20–40 cm, herbage silvery- or white-silky, hairs 1.1–2 mm.

Plants perennial, 7–30 cm, herbage cinereous or silvery-canescent.

Leaves

4.5–9.5 cm;

leaflets 11–17, blades usually narrowly to broadly obovate or ovate, rarely rhombic-suborbiculate, 5–14 mm, apex truncate-emarginate to subacute.

3–8 cm;

leaflets 11–19(or 21), blades obovate or elliptic, 2.5–11 mm, apex obtuse or emarginate.

Racemes

loosely (12–)20–35-flowered, lax and open in fruit;

axis (3.5–)4.5–10(–15) cm in fruit.

10–15-flowered, short and compact in fruit;

axis 0.5–4(–5) cm in fruit.

Peduncles

4.5–9 cm.

(1–)2–5.5 cm.

Flowers

12.2–14.3 mm;

calyx 6–7.6 mm, tube 4.5–4.9 mm, lobes 1.4–2.6 mm;

corolla pink-lavender.

9–10.5 mm;

calyx 4.2–5.5 mm, tube 3.2–4 mm, lobes 0.8–1.4 mm;

corolla purple.

Legumes

green, unmottled, obliquely ovoid, inflated, 15–20 × 8–10 mm, bilocular, stiffly papery, densely silky-villous-tomentulose;

beak 2.5–4 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.

Seeds

23–28.

20–26.

Astragalus lentiginosus var. micans

Astragalus lentiginosus var. antonius

Phenology

Flowering Apr–Jun.

Flowering late Apr–Jul.

Habitat

Forming large clumps over low slopes of mobile dunes.

Ponderosa pine forests.

Elevation

900–1000 m. (3000–3300 ft.)

1500–2600 m. (4900–8500 ft.)

Distribution

CA; NV

[BONAP county map]

Discussion

Variety micans is a local adjunct of the variable var. variabilis (D. Isely 1998), restricted to the southern end of Eureka Valley in Inyo County, California, and adjacent to Big Dune and in the Amargosa Desert, near Lathrop Wells in Nye County, Nevada. Isely questioned its recognition at varietal rank, initially considering it a local dune-specialized ecotype. Although it is ordinarily a strong perennial, some plants are evidently short-lived, a feature shared with var. coulteri.

Variety micans is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(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.)

Source

FNA vol. 11.

Parent taxa

Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus

Sibling taxa

Name authority

Barneby: Leafl. W. Bot. 8: 22. (1956)

Barneby: Leafl. W. Bot. 4: 100, plate 2, figs. 7–9. (1945)

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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Flora of North America species comparison

Astragalus lentiginosus var. micans

Astragalus lentiginosus var. antonius

Astragalus lentiginosus var. micans

Astragalus lentiginosus var. antonius