Flora of North America species comparison

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Parryella filifolia

common dunebroom, dune broom, parryella
Habit Shrubs lemon-scented, 5–16 dm.
Stems

pliant, purplish, turning gray with age, widely branched.
Leaves

narrowly lanceolate, 30–170 × 8–40 mm;

leaflet blades 4–16(–20) × 0.3–1.5 mm, margins revolute, plane, or concave.
Flowers

calyx shallowly lobed, 2–3.8 × 1–2 mm, glandular-punctate, lobes green with yellow glands, rounded or acute;

stamens conspicuously exserted beyond hypanthium, unequal.
Legumes

4–8 × 1.5–3 mm, beaked, style-base persistent, prominently dotted with red or orange glands.
2n

= 20.

Parryella filifolia
Phenology Flowering early–late summer.
Habitat Sand dunes, bluffs, talus, rock ledges.
Elevation 1400–2000 m. (4600–6600 ft.)
Distribution
from FNA
AZ; CO; NM; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Parryella filifolia, a broomlike shrub, is restricted to the Colorado Plateau of the western United States. The foliage varies in morphology from the southern to the northern part of its range. Plants in Colorado, New Mexico, and Utah are microphyllous with revolute leaves; in Arizona, the leaflets are larger and concavely folded. No attempt has been made to separate these groups taxonomically.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Parryella
Name authority Torrey & A. Gray: Proc. Amer. Acad. Arts 7: 397. (1868)
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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