Flora of North America species comparison

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Dalea villosa

Dalea laniceps

hairy prairieclover, silky prairie clover

woollyhead prairie clover
Stems

2.5–8(–9) dm, ± eglandular.

0.3–0.8 dm, eglandular.
Inflorescences

spikes, moderately densely flowered, not involucrate, 7–10 mm diam.;

axis eventually visible, 3–12(–14) cm;

bracts deciduous, (1.5–)2–5.5 mm.

spikes, densely flowered, not obviously involucrate, 15–20 mm diam.;

axis not visible, 0.7–3(–3.5) cm;

bracts persistent through anthesis, 6–9 mm.
Peduncles

0–1(–2.5) cm.

absent.
Stamens

5, (5–)5.4–7 mm, filaments distinct to 2.5–4.4 mm, anthers 0.6–0.9(–1) mm.

10, 10–11 mm, filaments distinct to 1.2–1.6 mm, anthers 0.5–0.6 mm.
Corollas

usually rose-purple to pale pink or lavender, rarely white;

not conventionally papilionaceous;

banner 4.4–5.6 mm, blade ovate to elliptic, 2.3–3 × 2–2.6 mm; epistemonous petals attached at separation of filaments, blades 2.1–3.8 × 0.9–1.3 mm.

clear yellow, reddish brown in age; papilionaceous;

banner 7–8.2 mm, blade reniform, 1.8–2.4 × 1.9–2.8 mm; epistemonous petals attached distal to middle of stamen tube;

wings 2.4–2.7 × 1.2–1.4 mm;

keel connate valvately, blades 3.2–4 × 1.6–2 mm.
Calyces

asymmetric, recessed opposite banner, 2.8–3.8 mm, densely pilosulous;

tube 1.9–2.7 mm, with 0 glands between ribs, lobes lanceolate or subulate or adaxial pair triangular to ovate.

somewhat asymmetric, slightly recessed opposite banner, 7.8–8.7 mm, densely pilose;

tube 2.5–2.9 mm, with 2 or 3 small glands between ribs, lobes triangular-aristate, becoming plumose.
Legumes

2.5–3.2 mm, distally villosulous, ± eglandular.

± 2.5 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.
Seeds

2–2.4 mm.

2.3–3 mm.
Perennial

herbs, erect or ascending to spreading, sometimes trailing, sparsely pubescent or densely villosulous.

herbs, erect to ascending, silvery-pilose.
Principal

leaves 2–4(–4.5) cm;

leaflets (9 or) 11–17(–21), blades elliptic to elliptic-oblanceolate, 8.5–15 mm.

leaves (1–)1.5–3.5 cm;

leaflets 3, blades rhombic-ovate to elliptic-oblanceolate, 5–18 mm, surfaces apparently eglandular.
2n

= 14.

Dalea villosa

Dalea laniceps
Phenology Flowering summer–fall.
Habitat Rocky slopes and hills, deserts, grasslands, open pine woods.
Elevation 900–2500 m. (3000–8200 ft.)
Distribution
from USDA
North America
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas)
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

In the flora area, Dalea laniceps is limited to the southeastern area of trans-Pecos Texas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Stems usually 2.5–5 dm, rarely longer, densely villosulous; leaflet blades 8.5–10(–11) mm, surfaces densely villosulous.
var. villosa
1. Stems 5–8(–9) dm, sparsely pubescent; leaflet blades 10–15 mm, surfaces sparsely pubescent.
var. grisea
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Dalea Fabaceae > subfam. Faboideae > Dalea
Sibling taxa
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. urceolata, D. versicolor, 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. 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
Subordinate taxa
D. villosa var. grisea, D. villosa var. villosa
Synonyms Petalostemon villosus
Name authority (Nuttall) Sprengel: Syst. Veg. 3: 326. (1826) Barneby: SouthW. Naturalist 15: 390. (1971)
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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