Flora of North America species comparison

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Dalea greggii

Dalea laniceps

Gregg's dalea, Gregg's prairie clover

woollyhead prairie clover
Habit Subshrubs, horizontal-spreading, mat-forming, at least young foliage silky-pilosulous.
Stems

procumbent or arching, often rooting along stems, 3–5(–20+) dm, eglandular or glandular-verruculose distally.

0.3–0.8 dm, eglandular.
Inflorescences

spikes, relatively densely flowered, not involucrate, 8–11 mm diam.;

axis usually not visible, 0.4–3(–5.5) cm;

bracts persistent, 2–4 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

0–4(–6) cm.

absent.
Stamens

10, 5.5–7.5 mm, filaments distinct to 1.7–2.4 mm, anthers 0.5–0.7 mm.

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

bicolored, banner cream to pale yellow, reddish in age, epistemonous petals pink to pink-purple; papilionaceous;

banner 4.4–6.2 mm, blade deltate-cordate, 2.6–3.5 × 3.2–4.3 mm, proximal lobes connate, forming obconic pit; epistemonous petals attached proximal to middle of stamen tube;

wings 3.2–4.6 × 1.6–2.4 mm;

keel connate valvately, blades 4–4.8(–5.3) × 2.2–3.3 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

subsymmetric, (4–)4.2–6 mm, silky-pilosulous;

tube (2–)2.2–2.8(–3) mm, usually with 3–8(–10) blister glands between ribs (scattered or in a row), lobes triangular-acuminate to lanceolate or aristate, unequal, abaxial longest.

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

2.1–2.8 mm, pilosulous and gland-dotted distally.

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

1.6–2 mm.

2.3–3 mm.
Principal

leaves 0.6–2.5(–3) cm;

leaflets 5–9, blades obovate to oblanceolate, 2–7(–9) mm.

leaves (1–)1.5–3.5 cm;

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

herbs, erect to ascending, silvery-pilose.
2n

= 14 (Mexico).

= 14.

Dalea greggii

Dalea laniceps
Phenology Flowering spring, fall, (year-round). Flowering summer–fall.
Habitat Rocky slopes, deserts, open woodlands, limestone soils. Rocky slopes and hills, deserts, grasslands, open pine woods.
Elevation 600–1400 m. (2000–4600 ft.) 900–2500 m. (3000–8200 ft.)
Distribution
from FNA
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas, south as far as Oaxaca)
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas)
[BONAP county map]
Discussion

Dalea greggii is cultivated as a ground cover and for erosion control in xeriscaping. In Texas, the species is known from the eastern trans-Pecos and Big Bend regions.

(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.)
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. 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. 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
Name authority A. Gray: Pl. Nov. Thurb., 314. (1854) 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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