Dalea foliosa |
Dalea candida |
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leafy prairie-clover |
white prairie-clover |
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Stems | 3–8 dm, eglandular. |
2.5–10 dm, minutely gland-dotted or eglandular. |
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Inflorescences | spikes, densely flowered, not involucrate, 8–10 mm diam.; axis not visible, 1.5–4.5 cm; bracts persistent through anthesis, 4.8–5.4 mm. |
spikes, densely to somewhat loosely flowered, cylindric, not involucrate, 6–9.5(–10) mm diam.; axis visible or not, especially in fruit, (1–)1.5–5.5(–7.5) cm; bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 2.5–5.5 mm. |
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Peduncles | 0–2 cm. |
0–5.5(–7.5) cm. |
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Stamens | 5, 5.4–7.2 mm, filaments distinct to 2.7–3.7 mm, anthers 0.6–0.9 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 | lavender-purple; not conventionally papilionaceous; banner 5.2–6 mm, blade ovate to suborbiculate, 2.1–2.5 × 2.6–3.2 mm; epistemonous petals attached at separation of filaments, blades 2.7–3 × 0.8–1 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 2–3.1 × 1.1–2.6 mm. |
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Calyces | subsymmetric, 3.8–4.4 mm, glabrous or lobes sometimes pilosulous; tube 2.4–2.7 mm, with 0 glands between ribs, lobes triangular-lanceolate or adaxial pair ovate-triangular. |
subsymmetric, (2.9–)3–4.2(–4.4) mm, pilosulous or tube glabrous; tube 1.9–2.7 mm, not deeply recessed opposite banner, with 1 (or 2) glands between ribs, lobes lanceolate to triangular, ± unequal, abaxial pair longest. |
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Legumes | 2.5–3 mm, glabrous, dotted with small glands distally. |
(2.6–)2.8–4(–4.5) mm, glabrate or distally pilose, with ± prominent, elongated to circular glands on sides. |
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Seeds | 1.8–2 mm. |
1.7–2.3 mm. |
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Perennial | herbs, erect, glabrous proximal to inflorescences. |
herbs, erect to diffusely spreading, glabrous throughout or proximal to inflorescence. |
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Principal | leaves 3–5.5 cm; leaflets 19–29(or 31), blades oblong-oblanceolate to -elliptic, 5–10 mm. |
leaves (1.5–)2–6 cm; leaflets 5–9, blades oblong to obovate or narrowly elliptic-oblanceolate, (6–)9–35 mm. |
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2n | = 14. |
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Dalea foliosa |
Dalea candida |
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Phenology | Flowering late summer–fall. | |||||
Habitat | Limestone glades, prairie remnants. | |||||
Elevation | 100–300 m. (300–1000 ft.) | |||||
Distribution |
AL; IL; TN
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North America; n Mexico
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Discussion | Dalea foliosa is rare and in 1991 was designated federally as endangered. At that time, there were 14 known populations, only four of which had state or Nature Conservancy protection. The species is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). Varieties candida and oligophylla were treated as separate species by D. K. Wemple (1970) and are fairly well defined. In regions of overlap, var. oligophylla normally occupies higher, drier sites than var. candida. (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 foliosus | Petalostemon candidus | ||||
Name authority | (A. Gray) Barneby: Mem. New York Bot. Gard. 27: 245. (1977) | Willdenow: Sp. Pl. 3: 1337. (1802) | ||||
Web links |