Astragalus petraeus Kar. & Kir.

Species

Angiosperms > Fabales > Fabaceae > Astragalus

Characteristics

Plants 5-30 cm tall, vegetative parts covered with ± medifixed, appressed hairs 0.6-1 mm. Stems several, 1.5-7 cm, densely covered with mostly white hairs. Leaves 4-8 cm; stip­ules 3-4 mm, adnate to petiole for 1-2 mm, often shortly con­nate behind stem, white and black or only white hairy; petiole 1-2 cm, like rachis densely white hairy; leaflets in 4-7 pairs, 6-15 × 3-8 mm, both surfaces densely covered with appressed hairs ca. 1 mm. Racemes short, rather densely 10-18-flowered; peduncle 8-11 cm, densely covered with appressed white hairs, toward raceme increasingly black hairy; bracts ca. 2 mm, white and predominantly black hairy, at margins mainly with subbasi­fixed to basifixed hairs. Calyx 8-10 mm, densely covered with tangled, spreading or ascending, extremely asymmetrically bifurcate to subbasifixed, white hairs up to 1 mm and especially on abaxial side with shorter, more symmetrically bifurcate, black hairs; teeth 2-3 mm. Petals violet; standard obovate, 18-22 × ca. 7 mm, constricted below middle, apex emarginate; wings 17-20 mm; keel 14-17 mm. Legumes sessile, pendulous, distinctly upcurved-falcate, 20-30 mm, 2-3 mm thick, apex shortly acuminate; valves densely covered with spreading or ascending, extremely asymmetrically bifurcate to subbasifixed, white hairs up to 1 mm and especially on adaxial side with shorter, more symmetrically bifurcate, black hairs.
Life form perennial
Growth form
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Astragalus petraeus world distribution map, present in China, Kazakhstan, Kyrgyzstan, and Tajikistan

Identifiers

LSID urn:lsid:ipni.org:names:479186-1
WFO ID wfo-0000198558
COL ID 5VVQC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Astragalus petraeus Tragacantha petraea Astragalus irkeschtami