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Chihuahuan prairie clover
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pineforest prairie clover
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1–4(–4.5) dm, eglandular or weakly gland-dotted. |
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spikes, densely flowered, not involucrate, 5–8 mm diam.; axis not visible, (0.8–)1.3–4.5(–6) cm; bracts persistent through anthesis, 2.5–3.3 mm. |
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(2.5–)4–16 cm. |
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4–7, 3–6 fertile, 3.2–4 mm, filaments distinct to 1 mm, anthers 0.2–0.3 mm. |
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lavender or pink-purple; not conventionally papilionaceous; banner 3.4–4.2 mm, blade ovate, 1.3–1.6 × 1–1.2 mm; epistemonous petals attached high on stamen tube, just proximal to separation of filaments, blades 1.7–2.3 × 0.9–1.1 mm. |
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asymmetric, recessed opposite banner, 3.8–4.3 mm, silky-pilose; tube 1.9–2.2 mm, with 0 glands between ribs, lobes triangular-aristate. |
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2.5 mm, pilosulous distally, eglandular. |
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1.9–2.3 mm. |
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herbs, erect, glabrate. |
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leaves 1.5–5.5 cm; leaflets 3 or 5, blades linear-oblanceolate to -elliptic, (0.5–)1–3.7(–4) cm. |
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urceolata is remarkable for its reduced corolla with two epistemonous petals and is rare throughout most of its range. |
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| Flowering fall. |
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| Grassy slopes, roadsides, open oak, juniper, or pine woodlands. |
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| 1500–2400 m. (4900–7900 ft.) |
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AZ; NM; Mexico (Chihuahua, Sonora) |
sw United States; Mexico |
Dalea exigua occurs in southeastern Arizona (Cochise, Pima, and Santa Cruz counties) and adjacent southwestern New Mexico. A disjunct population occurs in McKinley County, New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (1 in the flora). Variety tripetala (Paul G. Wilson) Barneby occurs in south-central Mexico (Michoacán to Morelos) and has fewer stamens (5–7) than var. urceolata (7–10). Variety lucida (Rose ex Rydberg) Barneby occurs in Durango and lacks the epistemonous petals; the banner is the only petal. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 11. |
FNA vol. 11. |
| Fabaceae > subfam. Faboideae > Dalea |
Fabaceae > subfam. Faboideae > Dalea |
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii |
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. versicolor, D. villosa, D. wrightii |
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| Petalostemon exilis |
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| Barneby: Mem. New York Bot. Gard. 27: 200. (1977) |
Greene: Leafl. Bot. Observ. Crit. 1: 199. (1906) |
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USDA Plants Database
