Flora of North America species comparison

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Dalea bartonii

Dalea aurea

Warnock's prairie clover

golden dalea, golden prairie clover
Stems

1.2–2.5 dm, gland-dotted.

(2–)3–7.5 dm, nearly eglandular.
Inflorescences

spikes, ± densely flowered, not involucrate, 8 mm diam.;

axis not visible, 0.3–1.4 cm;

bracts early deciduous or proximal ones persistent, 2–3 mm.

spikes, densely flowered, not involucrate, (12–)14–21 mm diam.;

axis not visible, (1–)1.5–6 cm;

bracts persistent to anthesis, 2.5–5.5 mm.
Peduncles

0.1–0.6 cm.

absent or very short, sometimes appearing relatively long due to small size of distalmost leaves.
Stamens

5, 9.5 mm, filaments distinct to 4.5 mm, anthers unknown.

10, 10–12.5 mm, filaments distinct to 2.5–3 mm, anthers 0.6–0.9 mm.
Corollas

white;

not conventionally papilionaceous;

banner 5.4 mm, blade deltate-obcordate, 2.5 × 3 mm; epistemonous petals attached at separation of filaments, blades 3 × 1.5 mm.

clear yellow; papilionaceous;

banner 6.3–8.6 mm, blade deltate-cordate, 3–4.2 × 3.2–4.4 mm; epistemonous petals attached near middle of stamen tube;

wings 4.7–5.6 × 2–2.4 mm;

keel connate valvately, blades (4.7–)5–7 × 2.6–3.2 mm.
Calyces

somewhat asymmetric, slightly recessed opposite banner, 3.8–4.3 mm, glabrous;

tube 2.8–3.5 mm, with 3–8+ blister glands between ribs, lobes triangular-subulate or adaxial pair triangular-acuminate.

subsymmetric, 6.1–7.4 mm, silky-pilose;

tube 2.2–2.8 mm, with 3 or 4 small glands between ribs, lobes lanceolate-aristate, becoming plumose.
Legumes

2.8 mm, sparsely pubescent along abaxial side, densely so at base of style, gland-dotted.

3–3.5 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.
Seeds

2 mm.

2–2.4 mm.
Perennial

herbs, erect, glabrous proximal to inflorescences.

herbs, erect, pilose to pilosulous.
Principal

leaves 0.8–2(–2.3) cm;

leaflets 5–9, blades obovate-cuneate, 2.5–7.5 mm.

leaves 1–3.5(–4) cm;

leaflets (3 or)5(or 7), blades obovate to oblong-oblanceolate, (3–)4–16(–20) mm.
2n

= 14, 24.

Dalea bartonii

Dalea aurea
Phenology Flowering summer. Flowering summer–early fall.
Habitat Limestone soils. Open prairies, dry slopes, rocky or sandy areas, on limestone.
Elevation 1000–1100 m. (3300–3600 ft.) 10–1800 m. (0–5900 ft.)
Distribution
from FNA
TX
[BONAP county map]
from FNA
AZ; CO; KS; NE; NM; OK; SD; TX; WY; Mexico (Chihuahua, Coahuila)
[WildflowerSearch map]
[BONAP county map]
Discussion

Dalea bartonii is known only from the type locality in Brewster County, although a vegetative specimen from adjacent Terrell County was annotated as D. bartonii by B. L. Turner.

Dalea bartonii was assigned by D. K. Wemple (1970) to D. sabinalis (as Petalostemon sabinalis), but R. C. Barneby (1977c) considered it closer to D. scariosa and could not readily accommodate it in his concept or either D. scariosa or D. sabinalis. The known specimens were collected in July but were in late flower and early fruit, indicating that the peak of bloom was earlier.

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

Dalea aurea is sometimes cultivated in rock gardens or dry soil for its showy flowers with yellow petals. In Texas, the species is quite widespread.

(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. 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. villosa, D. wrightii
D. albiflora, 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. villosa, D. wrightii
Synonyms D. ceciliana
Name authority Barneby: Mem. New York Bot. Gard. 27: 239, plate 54. (1977) — (as bartoni) Nuttall ex Pursh: Fl. Amer. Sept. 2: 740. (1813)
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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