Dalea nana |
Dalea multiflora |
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dwarf dalea, dwarf prairie-clover |
roundhead prairie clover |
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Stems | (0.5–)1–3.5 dm, nearly eglandular. |
3–8 dm, glandular-punctate. |
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Inflorescences | spikes, densely to loosely flowered, not involucrate, 7–13(–15) mm diam.; axis not to partially visible, 0.5–4(–5) cm; bracts deciduous at anthesis or later, 2.5–5.5 mm. |
spikes, densely flowered, nearly globose, inconspicuously involucrate (lowest bracts not subtending flowers), 7–9 mm diam.; axis not visible, 0.4–1(–1.2) cm; bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 2–2.4 mm. |
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Peduncles | 0–3.5 cm. |
(0–)0.5–3(–7) cm. |
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Stamens | 10, (6–)6.4–10 mm, filaments distinct to 1.1–2.3 mm, anthers 0.4–0.7 mm. |
5, (5–)5.2–7.6 mm, filaments distinct to 2.5–4.5 mm, anthers 0.7–1.2 mm. |
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Corollas | clear yellow, purplish or brownish in age; papilionaceous; banner (4–)4.4–5.5 mm, blade suborbiculate-cordate to reniform, 1.5–3.2 × (1.5–)2–3.6 mm; epistemonous petals attached near or distal to middle of stamen tube; wings 2.1–3.7 × 0.9–1.8 mm; keel connate valvately, blades 2.9–4.8 × 1.6–2.8 mm. |
white; not conventionally papilionaceous; banner (4–)4.2–5.7 mm, blade deltate-obovate, 2.3–3.4 × 2.4–3.7(–4.2) mm; epistemonous petals attached at separation of filaments, blades 2.3–3.5 × 1.5–2.1 mm. |
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Calyces | subsymmetric, 4.5–6.5(–7.5) mm, densely pilose; tube 1.9–2.7 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate, becoming plumose. |
subsymmetric, (2.9–)3–4.2(–4.4) mm, glabrous, lobes ciliolate; tube 1.6–2.6 mm, not deeply recessed opposite banner, with 1(–3) small blister glands between ribs, lobes lanceolate to triangular, ± unequal, abaxial pair longest. |
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Legumes | 2.5–3 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular. |
2.5–3 mm, glabrate, with ± prominent elongated glands on sides. |
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Seeds | 1.8–2.2 mm. |
1.6–2 mm. |
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Perennial | herbs, prostrate, diffusely spreading, or erect, silky-pilosulous. |
herbs, erect to spreading, glabrous. |
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Principal | leaves 1–2.5(–3) cm; leaflets (3 or)5(or 7), blades obovate to olanceolate, 3–15 mm, surfaces inconspicuously glandular-punctate abaxially. |
leaves 2–3 cm; leaflets (7 or)9 or 11(or 13), blades oblong to elliptic-oblanceolate, or linear-oblong, 7–13 mm. |
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Dalea nana |
Dalea multiflora |
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Phenology | Flowering late spring–early fall. | |||||
Habitat | Prairies, rocky hills. | |||||
Elevation | 0–700 m. (0–2300 ft.) | |||||
Distribution |
sw United States; n Mexico
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CO; KS; MO; NE; OK; TX
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Discussion | Varieties 2 (2 in the flora). Dalea nana shows extensive variability in a number of features, including habit, height, and bract shape. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea multiflora shows considerable geographic variation in stature. Its floral structure is similar to that of D. candida var. candida, and individuals intermediate between the two species occur (R. C. Barneby 1977c). In Texas, D. multiflora is known from the eastern two-thirds of the state. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||
Parent taxa | Fabaceae > subfam. Faboideae > Dalea | Fabaceae > subfam. Faboideae > Dalea | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Petalostemon multiflorus, Kuhnistera multiflora | |||||
Name authority | Torrey ex A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 31. (1849) | (Nuttall) Shinners: Field & Lab. 17: 82. (1949) | ||||
Web links |