Croton punctatus |
Croton capitatus |
|
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beach tea, gulf croton, hierba de jabalí |
capitate croton, hogwort, woolly croton |
|
Habit | Shrubs, 3–10 dm, monoecious or sometimes appearing dioecious. | Herbs, annual, 3–8 dm, monoecious. |
Stems | trichotomously branching, stellate-hairy to stellate-lepidote. |
well branched distally, stellate-hairy, hairs whitish to pale yellow, glabrescent. |
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. |
not clustered; stipules filiform, 2–5 mm; petiole 0.5–6 cm, glands absent at apex; blade ovate to lanceolate-elliptic, 3–8(–15) × 1–4 cm, base rounded to cuneate, margins entire, apex obtuse to acute or rounded, abaxial surface light green, not appearing brown-dotted, no stellate hairs with brown centers, adaxial surface darker green, both appressed stellate-hairy. |
Inflorescences | unisexual or bisexual, racemes, 1–4 cm, staminate flowers 3–7, pistillate flowers 1–3. |
bisexual, racemes or capitate, 1.5–3 cm, staminate flowers 5–15, pistillate flowers 3–6. |
Pedicels | staminate 2–4 mm, pistillate 0–1 mm. |
staminate 0.5–1.5 mm, pistillate 0–1.5 mm. |
Staminate flowers | sepals 5–6, 2.5 mm, abaxial surface stellate-lepidote; petals 0; stamens 10–13. |
sepals 5, 0.8–1 mm, abaxial surface stellate-hairy; petals 5, linear-oblong-lanceolate, 0.8–1 mm, abaxial surface stellate-hairy; stamens 7–12. |
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 6–9, equal, 7–10 mm to 15 mm in fruit, opening broadly and persistent after capsule dehiscence, margins entire, apex recurved, abaxial surface stellate-hairy; petals 0; ovary 3-locular; styles 3, 2–3 mm, 2–3 times 2-fid, terminal segments 12–18(–24). |
Capsules | 5–8 × 7–9 mm, smooth; columella 3-winged. |
7–9 × 5–6 mm, smooth; columella tipped with 3-pronged grappling hooklike appendage. |
Seeds | 4.5–6 × 3.7–4.5 mm, dull. |
5 × 4.5–5 mm, shiny. |
2n | = 28. |
= 20. |
Croton punctatus |
Croton capitatus |
|
Phenology | Flowering year-round. | Flowering Jun–Oct. |
Habitat | Beaches, dunes. | Pastures, old fields, cultivated land, prairies, floodplains, longleaf pinelands, sandy to loamy soils. |
Elevation | 0–20 m. (0–100 ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
AL; FL; GA; LA; MS; NC; SC; TX; e Mexico; Central America; West Indies; n South America
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AL; AR; DC; DE; IA; IL; IN; KS; KY; MA; MD; MO; MS; NC; NE; NJ; OH; OK; PA; SC; TN; TX; VA; WV
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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 capitatus is frequently confused with C. heptalon and C. lindheimeri. Croton capitatus usually has some leaves that are blunt-tipped and mucronate (versus all or most acute in C. lindheimeri), and the pistillate sepals are longer than the ovary, with tips that flare outward at anthesis. Also, C. capitatus has petioles roughly equal in length from the middle to the tip of the stem, whereas C. lindheimeri has petioles that decrease more markedly in length from the middle to the tip of the stem. Occurrences of C. capitatus east of the Appalachian Mountains are likely adventive. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 222. | FNA vol. 12, p. 212. |
Parent taxa | Euphorbiaceae > Croton | Euphorbiaceae > Croton |
Sibling taxa | ||
Synonyms | C. disjunctiflorus, C. maritimus, C. plukenetii | Heptallon graveolens, Oxydectes capitata, Pilinophytum capitatum |
Name authority | Jacquin: Collectanea 1: 166. (1787) — (as puntatum) | Michaux: Fl. Bor.-Amer. 2: 214. (1803) — (as capitatum) |
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