Host an Event Volunteer Join Tickets

Support the plant database you love!

Share

Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:

Astragalus argophyllus var. panguicensis

Astragalus argophyllus Nutt. var. panguicensis (M.E. Jones) M.E. Jones

Panguitch Silverleaf Milkvetch, Silverleaf Milkvetch

Fabaceae (Pea family)

Synonym(s): Astragalus panguicensis

USDA Symbol: ASARP

USDA Native Status: L48 (N)

"Closely resembling the dwarfer states of A. a. var. Martini, commonly subacaulescent, the stems rarely developed and up to 5 (10) cm. long; hairs of the herbage narrowly to widely ascending or subappressed, up to 0.65—1.5 mm. long, silvery- silky." (bibref: 1814).

 

From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: "Stems rarely developed and up to 5 (10) cm." (bibref: 1814).
Leaf: "Stipules submembranous becoming papery, often brownish when old, 2-8 (10) mm. long, the lowest (often dorsally glabrate) and sometimes all ovate or broadly lanceolate, the upper ones commonly longer and narrower, decurrent-amplexicaul around half to the whole stem's circumference, but the margins, even when in contact, not united; leaves 1.5-6 (8) cm. long, with 7-15 (17) oval-obovate, obtuse or very shortly acuminate and then subacute leaflets 2-9 mm. long." (bibref: 1814).
Flower: "Peduncles almost 0 to 9 cm. long, usually much and always a little shorter than the leaf, incurved-ascending at anthesis, arcuately reclinate or prostrate in fruit; bracts membranous or broadly membranous-margined, ovate or lanceolate, 1.8-6.5 mm. long; pedicels ascending or a trifle arched outward, at anthesis slender, 1.2-3.2 mm. long, in fruit a little thickened, 1.8-3.8 mm. long; bracteoles commonly 0, exceptionally present and up to 2.5 mm. long; calyx 9-12 (14) mm. long, pubescent like the herbage with white and often some or nearly all black hairs, the somewhat oblique disc 1-2.5 mm. deep, the cylindric, pallid or purplish tube 6.8-8.7 (10.6) mm. long, 2.8-3.4 mm. in diameter, the subulate or linear-subulate teeth 1.9-3.4 (4.2) mm. long, the whole becoming papery, ruptured, marcescent; petals either bright pink-purple (drying bluish), or tinged with lilac or dull purple; banner oblanceolate, broadly rhombic-oblanceolate, or spatulate, notched, 15-24 mm. long, 5.6-8.6 (10) mm. wide; wings a little shorter,14.2-17.1 (22.6) mm. long, the lance-oblong, claws obtuse blades rather abruptly narrowed and usually a little incurved in the distal third; keel 12.1-20.3 mm. long, keel-claws 7.5-9.8 (12.7) mm. long the half- obovate or lunately elliptic blades 4.6-6.1 (8.3) mm. long, 2.5-3.4 mm. wide, gently incurved through 80-90 (95) degrees to the blunt apex; anthers 0.45-0.85 mm. long." (bibref: 1814).
Fruit: "Pod ascending (humistrate), lunately lance-ellipsoid or narrowly and very obliquely ovoid-acuminate, 1.5-2.7 cm. long, 5-8 (9) mm. in diameter, either straight proximally and incurved into the deltoid or triangular-acuminate, laterally compressed beak, or gently incurved (through up to 1/2-circle) its whole length, obcompressed and dorsally flattened or very shallowly and widely sulcate in the lower ?, the ventral suture thick and prominent but sometimes depressed and lying in a double groove, the more or less fleshy, green valves becoming brownish, stiffly leathery or woody, faintly to quite strongly rugulose-reticulate and sometimes also wrinkled lengthwise on the ventral side, the surface of the valves concealed or nearly so by a dense coat of appressed and narrowly ascending, silvery hairs up to 0.5-0.75 mm. long; ovules 25-43; seeds brown, smooth or sparsely pitted, dull, 1.7-3 mm. long." (bibref: 1814).

Bloom Information

Bloom Color: Pink , Blue , Purple , Violet
Bloom Time: May , Jun , Jul
Bloom Notes: "Petals either bright pink-purple (drying bluish), or tinged with lilac or dull purple. May to July, exceptionally later." (bibref: 1814).

Distribution

USA: AZ , UT
Native Distribution: "Locally plentiful about the headwaters of the Sevier River in Garfield, Iron, and Kane Counties, east in Garfield County to the Henry Mountains, Utah; apparently also (with larger flowers) on the slopes of Mt. Emma, Uinkaret Plateau, Coconino County, Arizona." (bibref: 1814).
Native Habitat: "Gravelly hillsides and benches in yellow pine forest, coming out into sagebrush flats, 6750-9300 feet." (bibref: 1814).

Bibliography

Bibref 1814 - Atlas of North American Astragalus Volume 2 (1964) Barneby, Rupert C.

Search More Titles in Bibliography

Additional resources

USDA: Find Astragalus argophyllus var. panguicensis in USDA Plants
FNA: Find Astragalus argophyllus var. panguicensis in the Flora of North America (if available)
Google: Search Google for Astragalus argophyllus var. panguicensis

Metadata

Record Modified: 2020-12-07
Research By: Joseph A. Marcus

Go back