Croton michauxii

Herbs, annual, 1–9 dm, monoecious. Stems usually single from base, much branched from near middle, densely stellate-lepidote appearing silvery. Leaves not clustered; stipules rudimentary; petiole 0.1–0.5 cm, glands absent at apex; blade lanceolate-linear to ovatelanceolate, 1.5–4 × 0.1–0.4 (–1.5) cm, base acute to cuneate, margins entire, apex acute, abaxial surface silvery, stellate-lepidote, adaxial surface green, sparsely stellate-hairy, hairs with few radii. Inflorescences bisexual, spikes, 0.3–3 cm, staminate flowers 1–12, pistillate flowers 1–6. Pedicels: pistillate absent, staminate 0–1 mm. Staminate flowers: sepals 5, 1 mm, abaxial surface lepidote; petals 5, spatulate, 0.6–1 mm, abaxial surface glabrous except margins villous; stamens 5–7. Pistillate flowers: sepals (4–) 5, equal, 1–1.5 mm, margins entire, apex straight, abaxial surface lepidote; petals 0; ovary 1-locular; styles 3, 0.5–0.8 mm, minutely 2-fid, terminal segments 3 or 6. Achenes 2.5–3 × 1–1.2 mm, smooth; columella absent. Seeds 2–2.5 × 1 mm, surface not visible because seed-coat adherent to fruit wall.

Distribution

• Generated Map
• Legacy Map

Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Miss., Mo., N.C., N.J., Okla., Pa., S.C., Tenn., Tex., Va.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Lower Taxa

Croton michauxii var. elliptica, Croton michauxii var. michauxii

Key

1	Inflorescences 1–3 cm; achenes usually 3–6, densely stellate-lepidote, hairs ± spreading, radii separate most of length, umbos usually sharp, sometimes rounded; leaf blade adaxial surface hairs not overlapping.	Croton michauxii var. michauxii
1	Inflorescences usually less than 1 cm; achenes 1–2, sparsely stellate-lepidote, hairs appressed, radii joined most or all of length, umbos usually blunt, rarely sharp; leaf blade adaxial surface hairs overlapping near midvein.	Croton michauxii var. elliptica

"connate" is not a number. "distinct" is not a number.