Baptisia sphaerocarpa |
Baptisia perfoliata |
|
---|---|---|
green wild indigo, round wild indigo, yellow wild indigo |
cat-bells |
|
Habit | Herbs erect, to 1 m, glabrescent. | Herbs ascending or erect, much-branched, to 1 m, glabrous. |
Leaves | petiolate; stipules deciduous, subulate, 4–16 mm; petiole 1–4 mm; leaflets 3 to mid stem, or 1 or 2 distally, blades obovate or elliptic to oblanceolate. |
sessile; stipules absent; leaflet 1, blade perfoliate, broadly ovate-elliptic. |
Racemes | 5+-flowered, terminal, stiffly erect, bracteate, bracts caducous. |
1-flowered, axillary, ebracteate. |
Pedicels | 2–5 mm. |
absent. |
Flowers | 18–22 mm; calyx 7–9 mm, glabrous; corolla bright yellow, 16–20 mm. |
15–17 mm; calyx 5–7 mm, glabrous; corolla bright yellow, 13–15 mm. |
Legumes | ascending to spreading, suborbicular, 7–11 × 7–11 mm, woody, glabrous. |
ascending, ovoid, 10–15 × 8–12 mm, abruptly beaked, woody. |
Seeds | 2–4(–6). |
2–4. |
2n | = 18. |
= 18. |
Baptisia sphaerocarpa |
Baptisia perfoliata |
|
Phenology | Flowering Apr–May. | Flowering Apr–Jun. |
Habitat | Mostly clay or silty-clay soils. | Open pine and pine-oak woodlands, sandy soils. |
Elevation | 10–200 m. (0–700 ft.) | 10–200 m. (0–700 ft.) |
Distribution |
LA; MO; MS; OK; TX
|
AL; FL; GA; SC
|
Discussion | Baptisia sphaerocarpa forms hybrids with B. lactea, B. leucophaea (B. × intermedia Larisey [= B. × bushii Small and B. × stricta Larisey]), and B. nuttalliana. Baptisia × bushii was treated as a species by M. M. Larisey (1940). Baptisia × intermedia, as described by Larisey, was said to be a hybrid of B. leucophaea var. glabrescens Larisey and B. viridis, which is treated here as synonymous with B. sphaerocarpa. Interestingly, these three hybrids (B. × bushii, B. × intermedia, and B. × stricta) key out in adjacent couplets in the treatment by Larisey. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Baptisia perfoliata forms hybrids with B. alba, B. lanceolata, and B. tinctoria; F1 hybrids with the latter are called B. × microphylla Nuttall. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Baptisia | Fabaceae > subfam. Faboideae > Baptisia |
Sibling taxa | ||
Synonyms | B. viridis | Crotalaria perfoliata |
Name authority | Nuttall: J. Acad. Nat. Sci. Philadelphia 7: 97. (1834) | (Linnaeus) R. Brown in W. Aiton and W. T. Aiton: Hortus Kew. 3: 5. (1811) |
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