Flora of North America species comparison

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Caragana aurantiaca

dwarf pea shrub
Habit Shrubs or subshrubs, 0.5–1.5 m, armed or unarmed, strigulose or glabrate.
Stems

erect or decumbent, often intricately branched;

bark dark greenish gray to brownish gray.
Leaves

appearing palmate;

stipules 2–6 mm, usually spinose;

petiole 0.1–0.2 cm, sometimes spine-tipped;

rachis absent;

leaflets (3 or)4, blades oblanceolate to linear-oblanceolate, mostly curved or sickle-shaped, often folded or involute, 0.5–1.7(–2.3) × 0.1–0.3(–0.4) cm, base attenuate, apex acute or acuminate, apiculate, surfaces glabrous.
Inflorescences

with 1(or 2) flowers per fascicle;

peduncle-pedicel 0.4–1.6 cm, glabrous.
Flowers

calyx broadly campanulate, 5–8 mm, teeth 1.5–2 mm, glabrous, orifice ciliate;

corolla orange-yellow, 1.5–2.2 cm.
Legumes

reddish brown, oblong, 1.5–4 × 0.3–0.4 cm.
Seeds

4–8, greenish to reddish brown, ovoid to 4-angled, 3–4 mm.
2n

= 16.

Caragana aurantiaca
Phenology Flowering Jun–Jul; fruiting Jun–Sep.
Habitat Roadsides.
Elevation 1700–2600 m. (5600–8500 ft.)
Distribution
from FNA
CO; ND; c Asia [Introduced in North America]
[BONAP county map]
Discussion

Caragana aurantiaca is known to be cultivated in Manitoba, Nova Scotia, Ontario, Saskatchewan, Colorado, Idaho, Iowa, Massachusetts, New York, Nevada, North Dakota, and South Dakota.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Caragana
Sibling taxa
C. arborescens, C. frutex
Name authority Koehne: Deut. Dendrol., 340. (1893)
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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