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low croton, pepperbush, salvia

Wiggins' croton

Habit Shrubs, 3–8 dm, monoecious. Shrubs, 2–10 dm, dioecious.
Stems

much branched, stellate-hairy, viscid.

densely branched, appressed-lepidote.

Leaves

not clustered;

stipules 2–5 stipitate glands, to 0.5 mm;

petiole 0.7–3(–5) cm, 3/8–5/8 leaf blade length, glands absent at apex;

blade ovate to oblong, 1.5–8 × 1–2(–5) cm, base rounded to subcordate, margins entire to minutely glandular-denticulate, apex abruptly acute to acuminate, both surfaces pale green, abaxial densely stellate-hairy, adaxial tomentose, glabrescent.

not clustered;

stipules absent;

petiole 1–4 cm, usually less than 1/2 blade length, glands absent at apex;

blade narrowly elliptic to linear-oblong, 2–8.5 × 0.6–1.5 cm, more than 2 times as long as wide, base obtuse, margins entire, apex obtuse to rounded, abaxial surface pale green, adaxial surface darker green, both densely pale stellate-lepidote.

Inflorescences

bisexual or unisexual, racemes, 3–7 cm, staminate flowers 20–35, pistillate flowers 2–6.

unisexual, racemes or thyrses;

staminate 1–3.5(–10) cm, flowers 3–8(–15);

pistillate 0.5–1 cm, flowers 1–6.

Pedicels

staminate 3–4 mm, pistillate 1–2(–3) mm.

staminate 1–7 mm, pistillate 1–2 mm (4–7 mm in fruit).

Staminate flowers

sepals 5, 3–4 mm, abaxial surface stellate-hairy;

petals 5, spatulate, 3–4 mm, abaxial surface glabrous except margins ciliate basally;

stamens 15–35.

sepals 5, 1 mm, abaxial surface stellate-hairy;

petals 0;

stamens 10–15.

Pistillate flowers

sepals 5, equal, 4 mm, margins entire, sessile- or shortly stipitate-glandular, apex incurved, abaxial surface stellate-hairy;

petals 0 or 5, white, subulate, 1 mm;

ovary 3-locular;

styles 3, 3–5 mm, 4-fid, terminal segments 12.

sepals 5, equal, 2 mm, margins entire, apex incurved, abaxial surface stellate-lepidote;

petals 0;

ovary 3-locular;

styles 3, 1.5–2.5 mm, 2–3 times 2-fid, terminal segments 12–24.

Capsules

4–5 × 4 mm, smooth;

columella apex with 3 rounded, inflated lobes.

7–10 × 6–8 mm, smooth;

columella 3-winged.

Seeds

3–4 × 2.5–3 mm, shiny.

6.5–7 × 2–3 mm, dull.

2n

= 20.

= 28.

Croton humilis

Croton wigginsii

Phenology Flowering year-round. Flowering Feb–May.
Habitat Hammocks, thickets, disturbed areas. Sand dunes.
Elevation 0–50 m. (0–200 ft.) 10–100 m. (0–300 ft.)
Distribution
from FNA
FL; TX; e Mexico; se Mexico; West Indies
[BONAP county map]
from FNA
AZ; CA; Mexico (Baja California, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Croton humilis is a mainly West Indian species extending from southernmost Florida (Collier and Monroe counties) to the Bahamas, Cuba, Hispaniola, Jamaica, and Puerto Rico, and up the Caribbean coast of Mexico to southernmost Texas (Cameron, Hidalgo, Starr, Willacy, and Zapata counties). Texas plants have more stamens (30–35) than Florida plants (15–20).

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

Croton wigginsii is closely related to C. californicus but more robust in its habit and floral features, and is restricted to sand dunes in a limited area of the Sonoran Desert. In the flora area, C. wigginsii is known only from Yuma County, Arizona, and Imperial County, California.

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

Source FNA vol. 12, p. 217. FNA vol. 12, p. 224.
Parent taxa Euphorbiaceae > Croton Euphorbiaceae > Croton
Sibling taxa
C. alabamensis, C. argenteus, C. argyranthemus, C. californicus, C. capitatus, C. ciliatoglandulifer, C. cortesianus, C. coryi, C. dioicus, C. elliottii, C. fruticulosus, C. glandulosus, C. heptalon, C. incanus, C. leucophyllus, C. lindheimeri, C. lindheimerianus, C. linearis, C. michauxii, C. monanthogynus, C. parksii, C. pottsii, C. punctatus, C. sancti-lazari, C. setigerus, C. soliman, C. sonorae, C. suaveolens, C. texensis, C. wigginsii
C. alabamensis, C. argenteus, C. argyranthemus, C. californicus, C. capitatus, C. ciliatoglandulifer, C. cortesianus, C. coryi, C. dioicus, C. elliottii, C. fruticulosus, C. glandulosus, C. heptalon, C. humilis, C. incanus, C. leucophyllus, C. lindheimeri, C. lindheimerianus, C. linearis, C. michauxii, C. monanthogynus, C. parksii, C. pottsii, C. punctatus, C. sancti-lazari, C. setigerus, C. soliman, C. sonorae, C. suaveolens, C. texensis
Synonyms C. berlandieri C. arenicola
Name authority Linnaeus: Syst. Nat. ed. 10, 2: 1276. (1759) — (as humile) L. C. Wheeler: Contr. Gray Herb. 124: 37. (1939)
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