Flora of North America species comparison

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Dalea foliosa

Dalea greggii

leafy prairie-clover

Gregg's dalea, Gregg's prairie clover
Habit Subshrubs, horizontal-spreading, mat-forming, at least young foliage silky-pilosulous.
Stems

3–8 dm, eglandular.

procumbent or arching, often rooting along stems, 3–5(–20+) dm, eglandular or glandular-verruculose distally.
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, relatively densely flowered, not involucrate, 8–11 mm diam.;

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

bracts persistent, 2–4 mm.
Peduncles

0–2 cm.

0–4(–6) cm.
Stamens

5, 5.4–7.2 mm, filaments distinct to 2.7–3.7 mm, anthers 0.6–0.9 mm.

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

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.
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, (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.
Legumes

2.5–3 mm, glabrous, dotted with small glands distally.

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

1.8–2 mm.

1.6–2 mm.
Perennial

herbs, erect, glabrous proximal to inflorescences.

Principal

leaves 3–5.5 cm;

leaflets 19–29(or 31), blades oblong-oblanceolate to -elliptic, 5–10 mm.

leaves 0.6–2.5(–3) cm;

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

= 14.

= 14 (Mexico).

Dalea foliosa

Dalea greggii
Phenology Flowering late summer–fall. Flowering spring, fall, (year-round).
Habitat Limestone glades, prairie remnants. Rocky slopes, deserts, open woodlands, limestone soils.
Elevation 100–300 m. (300–1000 ft.) 600–1400 m. (2000–4600 ft.)
Distribution
from FNA
AL; IL; TN
[WildflowerSearch map]
[BONAP county map]
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]
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.)

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.)
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. 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. 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
Synonyms Petalostemon foliosus
Name authority (A. Gray) Barneby: Mem. New York Bot. Gard. 27: 245. (1977) A. Gray: Pl. Nov. Thurb., 314. (1854)
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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