Croton punctatus |
Croton coryi |
|
---|---|---|
beach tea, gulf croton, hierba de jabalí |
Cory's croton |
|
Habit | Shrubs, 3–10 dm, monoecious or sometimes appearing dioecious. | Herbs, annual, 5–10 dm, monoecious. |
Stems | trichotomously branching, stellate-hairy to stellate-lepidote. |
trichotomously branched, mostly densely, grayish white, long stellate-hairy. |
Leaves | not clustered; stipules absent; petiole 1–4 cm, 1/2 to equal blade length, glands absent at apex; blade broadly elliptic to suborbiculate, 2–5 × 1.5–4 cm, much less than 2 times as long as wide, base rounded to truncate, margins entire, apex obtuse to rounded, abaxial surface pale grayish green, stellate-lepidote, adaxial surface slightly darker green, stellate-lepidote. |
sometimes clustered near inflorescences; stipules absent; petiole 1.5–4 cm, glands absent at apex; blade narrowly ovate to elliptic, 3.5–7 × 1.5–3.5 cm, base rounded to subtruncate or subcordate, margins entire, apex acute, both surfaces light olive green, abaxial surface not appearing brown-dotted, no stellate hairs with brown centers, whitish stellate-hispid. |
Inflorescences | unisexual or bisexual, racemes, 1–4 cm, staminate flowers 3–7, pistillate flowers 1–3. |
bisexual, subspicate racemes, 4–7 cm, staminate flowers 15–25, pistillate flowers 8–15. |
Pedicels | staminate 2–4 mm, pistillate 0–1 mm. |
staminate 0.5–2.5 mm, pistillate 0–3 mm. |
Staminate flowers | sepals 5–6, 2.5 mm, abaxial surface stellate-lepidote; petals 0; stamens 10–13. |
sepals 5, 3 mm, abaxial surface stellate-hairy; petals 5, ligulate, 3–3.5 mm, abaxial surface densely lepidote, scales translucent, petals appearing hyaline; stamens 14–16. |
Pistillate flowers | sepals 5, equal, 3–3.5 mm, margins entire, apex incurved, abaxial surface stellate-lepidote; petals 0; ovary 3-locular; styles 3, 1–2 mm, multifid, terminal segments 12–24. |
sepals 6–8, equal, 7 mm, margins entire, apex straight to slightly incurved, abaxial surface shaggy-tomentose; petals 0 or rudimentary; ovary 3-locular; styles 3, 3–4 mm, 2 times 2-fid, terminal segments 12. |
Capsules | 5–8 × 7–9 mm, smooth; columella 3-winged. |
4.5–5.5 × 4 mm, smooth; columella 3-angled. |
Seeds | 4.5–6 × 3.7–4.5 mm, dull. |
3 × 2 mm, dull. |
2n | = 28. |
|
Croton punctatus |
Croton coryi |
|
Phenology | Flowering year-round. | Flowering May–Nov. |
Habitat | Beaches, dunes. | Grasslands, woodland openings, deep well-drained sands, barrier island dunes, similar habitats inland. |
Elevation | 0–20 m. (0–100 ft.) | 0–50 m. (0–200 ft.) |
Distribution |
AL; FL; GA; LA; MS; NC; SC; TX; e Mexico; Central America; West Indies; n South America
|
TX |
Discussion | A report of Croton punctatus from Pennsylvania apparently was based on a transient appearance on ballast (E. T. Wherry et al. 1979). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Croton coryi is endemic to the South Texas Sand Sheet of coastal southern Texas (Brooks, Hidalgo, Jim Hogg, Kenedy, Kleberg, Nueces, Starr, and Willacy counties). Despite the marked difference in vegetative indumenta, C. coryi is closely related to C. argyranthemus. The most obvious feature linking them is the silvery lepidote staminate petals. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 222. | FNA vol. 12, p. 213. |
Parent taxa | Euphorbiaceae > Croton | Euphorbiaceae > Croton |
Sibling taxa | ||
Synonyms | C. disjunctiflorus, C. maritimus, C. plukenetii | |
Name authority | Jacquin: Collectanea 1: 166. (1787) — (as puntatum) | Croizat: Bull. Torrey Bot. Club 69: 446, 457. (1942) |
Web links |