Flora of North America species comparison

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Dalea gattingeri

Dalea exigua

Gattinger prairie clover, purpletassels

Chihuahuan prairie clover
Stems

1.5–3.5 dm, usually glabrous or glabrescent at base, pilosulous distally, eglandular or with scattered small glands.

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

spikes, moderately densely flowered, not involucrate, (8–)9–10 mm diam.;

axis becoming partially visible, 1.5–7.5 cm;

bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 3–5(–6) mm.

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.
Peduncles

0.5–2.5 cm.

(2.5–)4–16 cm.
Stamens

5, 6.3–7.8 mm, filaments distinct to 3.8–5.4 mm, anthers 0.8–1 mm.

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

rose-purple;

not conventionally papilionaceous;

banner 5.2–6.2 mm, blade ovate, 2.1–2.6 × (1.6–)2–2.8 mm; epistemonous petals attached at separation of filaments, blades 2.6–3.2 × 0.9–1.3 mm.

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.
Calyces

subsymmetric, 4–5 mm, pilose-tomentulose;

tube 2–2.5(–2.7) mm, prominently to indistinctly 10-ribbed, ± circular in cross section, with 0 glands between ribs, lobes lanceolate or adaxial pair ovate.

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.
Legumes

2.8–3.3 mm, pilosulous distally and dotted with small glands.

2.5 mm, pilosulous distally, eglandular.
Seeds

2.2 mm.

1.9–2.3 mm.
Perennial

herbs, diffusely spreading, distally pilosulous on stems.

Principal

leaves 2–3.5 cm;

leaflets 5 or 7(or 9), blades linear to linear-oblanceolate or linear-elliptic, 8–18 mm.

leaves 1.5–5.5 cm;

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

herbs, erect, glabrate.
2n

= 14.

Dalea gattingeri

Dalea exigua
Phenology Flowering late spring–summer. Flowering fall.
Habitat Cedar glades and barrens, on rocky, calcareous soils. Grassy slopes, roadsides, open oak, juniper, or pine woodlands.
Elevation 150–500 m. (500–1600 ft.) 1500–2400 m. (4900–7900 ft.)
Distribution
from FNA
AL; AR; GA; MO; TN
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; Mexico (Chihuahua, Sonora)
[BONAP county map]
Discussion

Dalea gattingeri is a narrow habitat specialist that can be locally common in suitable habitat.

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

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.)
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. 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. 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
Synonyms Kuhnistera gattingeri, Petalostemon gattingeri Petalostemon exilis
Name authority (A. Heller) Barneby: Mem. New York Bot. Gard. 27: 274. (1977) Barneby: Mem. New York Bot. Gard. 27: 200. (1977)
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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