Flora of North America species comparison

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Dalea exigua

Dalea obovata

Chihuahuan prairie clover

pussyfoot
Stems

1–4(–4.5) dm, eglandular or weakly gland-dotted.

to 5.5 dm, sparsely dotted with small, raised glands.
Inflorescences

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.

spikes, densely flowered, not involucrate, (12–)14–20 mm diam.;

axis not visible, 3.5–11 cm;

bracts early deciduous, interfloral ones often held in place by crowded flowers, 5.5–11 mm.
Peduncles

(2.5–)4–16 cm.

0–3(–10) cm.
Stamens

4–7, 3–6 fertile, 3.2–4 mm, filaments distinct to 1 mm, anthers 0.2–0.3 mm.

5, (4.5–)5–6.6 mm, filaments distinct to 1–2.2 mm, anthers 0.6–0.8 mm.
Corollas

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.

white, ochroleucous in drying;

not conventionally papilionaceous;

banner (3.5–)4–7 mm, blade ovate-oblong, (2–)2.2–2.9(–3.1) × 1.2–2 mm; epistemonous petals attached at or just proximal to separation of filaments, blades 2–3.2 × 0.5–0.9 mm.
Calyces

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.

± asymmetric, slightly recessed opposite banner, 3.3–5.8 mm, pilose;

tube (1.3–)1.4–2.1 mm, with 1 or 2 small glands between ribs, lobes triangular-aristate.
Legumes

2.5 mm, pilosulous distally, eglandular.

2.7–3 mm, pilosulous distally, eglandular.
Seeds

1.9–2.3 mm.

1.7 mm.
Annual

herbs, erect, glabrate.

Principal

leaves 1.5–5.5 cm;

leaflets 3 or 5, blades linear-oblanceolate to -elliptic, (0.5–)1–3.7(–4) cm.

leaves (2–)2.5–5 cm;

leaflets 7–11, blades obovate, (8–)10–16 mm, surfaces eglandular.
Perennial

herbs, short-lived, erect, ± lanate-pilose.

Dalea exigua

Dalea obovata
Phenology Flowering fall. Flowering spring (fall–early winter).
Habitat Grassy slopes, roadsides, open oak, juniper, or pine woodlands. Sandy, open ground on and near Gulf Coastal Plain.
Elevation 1500–2400 m. (4900–7900 ft.) 0–400 m. (0–1300 ft.)
Distribution
from FNA
AZ; NM; Mexico (Chihuahua, Sonora)
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

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.)

Dalea obovata occurs in the southern coastal plain of Texas as far north and west as Frio, Medina, and Travis counties.

(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. 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. 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 exilis Petalostemon obovatus
Name authority Barneby: Mem. New York Bot. Gard. 27: 200. (1977) (Torrey & A. Gray) Shinners: Field & Lab. 17: 84. (1949)
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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