Parryella filifolia
Parryella
common dunebroom, dune broom, parryella
parryella
pliant, purplish, turning gray with age, widely branched.
erect, glandular.
narrowly lanceolate, 30–170 × 8–40 mm;
leaflet blades 4–16(–20) × 0.3–1.5 mm, margins revolute, plane, or concave.
alternate, odd-pinnate;
stipules present, caducous;
sessile;
leaflets 17–41, blades linear-filiform or oblong-elliptic, margins entire, surfaces puberulent.
10–50(–90)-flowered, terminal, racemes;
bracts absent.
relatively short, hairy.
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.
non-papilionaceous;
calyx narrowly campanulate, lobes 5;
corolla absent;
stamens 10, monomorphic, distinct;
anthers versatile;
ovary 2-loculed;
style sinuous;
stigma punctiform.
legumes, sessile, slightly compressed laterally, obovoid, indehiscent, prominently gland-dotted.
4–8 × 1.5–3 mm, beaked, style-base persistent, prominently dotted with red or orange glands.
1 or 2, obovoid.
= 10.
= 20.
Parryella filifolia
Parryella
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.)
Species 1.
Parryella is part of the amorphoid group of legumes (Amorpha, Eysenhardtia, etc.), characterized by non-papilionaceous flowers (M. McMahon and L. Hufford 2004). The relationships of Parryella within this group are discussed under 61. Amorpha.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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