Flora of North America species comparison

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Astragalus lentiginosus var. multiracemosus
Photo is of parent taxon

lamoille canyon milkvetch
Habit Plants perennial, 25–48 cm.
Stems

prostrate, radiating from root-crown.
Leaves

6.5–12 cm;

leaflets 15 or 17, blades lanceolate to oblong-elliptic, 7–18 mm, apex truncate or round.
Racemes

12–14-flowered, floriferous from all but proximalmost nodes, short and compact in fruit;

axis 4–4.5 cm in fruit.
Peduncles

1.3–2 cm.
Flowers

12–15 mm;

calyx 7–7.5 mm, tube 4–4.5 mm, lobes 3–3.2 mm;

corolla whitish or faintly lavender.
Legumes

purple-mottled becoming stramineous, broadly ovoid-acuminate, strongly inflated, 8–12 × 5–6 mm, opaque-papery, glabrous;

beak 3–5 mm, unilocular.
Seeds

not determined.

Astragalus lentiginosus var. multiracemosus
Phenology Flowering Jul–Sep.
Habitat Moist seeps.
Elevation 2500–2600 m. (8200–8500 ft.)
Distribution
from FNA
NV
Discussion

Variety multiracemosus is known only from Lamoille Canyon in the Ruby Mountains in Elko County. The proliferous habit of producing numerous racemes along prostrate stems is shared with disjunct vars. floribundus, ineptus, piscinensis, and sesquimetralis. The nearest relationship is most likely with var. salinus, which sometimes produces racemes from middle as well as distal nodes, producing new flowers distally while proximal racemes are in fruit. Flower size is similar to that of var. salinus; fruit is similar to that of var. scorpionis.

(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
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. 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 S. L. Welsh & N. D. Atwood in S. L. Welsh: N. Amer. Sp. Astragalus, 294, fig. 285c. (2007)
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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