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Peck's milkvetch

Habit Plants perennial, caulescent, with a thatch of stiff persistent petioles, grayish strigose-pilosulose, hairs basifixed.
Stems

several–numerous; erect when young, prostrate with age; (1)5–20 cm.

Leaves

1–4 cm;

leaflets 6–14, lanceolate, oblanceolate or linear-elliptic, 1–6 × 0.5–2 mm;

tips acute or subacute;

surfaces abaxially pubescent, adaxially pubescent or glabrescent;

terminal leaflet confluent with rachis, filiform or slightly expanded, sometimes as recurved hook;

stipules 1–3 mm, connate-sheathing.

Inflorescences

racemes loosely 5–9-flowered;

peduncles 0.7–2 cm;

bracts 1–1.5 mm;

pedicels 1–2.5 mm;

bracteoles 0.

Flowers

declined at anthesis;

calyces 3.3–4.4 mm, densely strigillose with white hairs;

tubes 1.8–2.1 mm;

teeth subulate, 1.4–2.4 mm;

corollas 5–7.5 mm, ochroleucous;

banners purple-veined;

ovules 7–9.

Fruits

bilocular, deflexed, oblong-ellipsoid; ovate-elliptic to lenticular, compressed triquetrous, 5–8 × 1.9–3.3 mm, strigose to villosulous;

valves papery;

stipes 0–0.5 mm.

Astragalus pauperculus

Astragalus peckii

Distribution
[WildflowerSearch map]
[BONAP county map]
[BONAP county map]
Discussion

Pumice and sandy soils, sagebrush. Flowering May–Aug. 900–1500 m. Casc, ECas, Lava. Native. Endemic to Oregon.

This endemic species is notable for its small, purple-veined flowers; small, compressed triquetrous fruits; prominent connate stipules; and thatch of persistent petioles.

Source Flora of Oregon, volume 2, page 671
Richard Halse
Sibling taxa
A. accidens, A. agrestis, A. alpinus, A. alvordensis, A. applegatei, A. arthuri, A. atratus, A. australis, A. beckwithii, A. californicus, A. calycosus, A. canadensis, A. caricinus, A. collinus, A. conjunctus, A. curvicarpus, A. cusickii, A. diaphanus, A. drummondii, A. eremiticus, A. filipes, A. gambellianus, A. geyeri, A. hoodianus, A. howellii, A. inflexus, A. iodanthus, A. kentrophyta, A. lemmonii, A. lentiginosus, A. malacus, A. misellus, A. mulfordiae, A. multiflorus, A. newberryi, A. nudisiliquus, A. obscurus, A. peckii, A. platytropis, A. purshii, A. reventus, A. robbinsii, A. salmonis, A. sclerocarpus, A. sheldonii, A. solitarius, A. spaldingii, A. sterilis, A. succumbens, A. tegetarioides, A. tetrapterus, A. toanus, A. tweedyi, A. tyghensis, A. umbraticus, A. vallaris, A. whitneyi
A. accidens, A. agrestis, A. alpinus, A. alvordensis, A. applegatei, A. arthuri, A. atratus, A. australis, A. beckwithii, A. californicus, A. calycosus, A. canadensis, A. caricinus, A. collinus, A. conjunctus, A. curvicarpus, A. cusickii, A. diaphanus, A. drummondii, A. eremiticus, A. filipes, A. gambellianus, A. geyeri, A. hoodianus, A. howellii, A. inflexus, A. iodanthus, A. kentrophyta, A. lemmonii, A. lentiginosus, A. malacus, A. misellus, A. mulfordiae, A. multiflorus, A. newberryi, A. nudisiliquus, A. obscurus, A. peckii, A. platytropis, A. purshii, A. reventus, A. robbinsii, A. salmonis, A. sclerocarpus, A. sheldonii, A. solitarius, A. spaldingii, A. sterilis, A. succumbens, A. tegetarioides, A. tetrapterus, A. toanus, A. tweedyi, A. tyghensis, A. umbraticus, A. vallaris, A. whitneyi
Synonyms Astragalus lentiformis
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