Acalypha gracilens A.Gray

Slender threeseed mercury (en)

Species

Angiosperms > Malpighiales > Euphorbiaceae > Acalypha

Characteristics

Stem erect, simple or branched from near the base, 2–5 dm, pubescent with incurved hairs; petioles about a fourth as long as the blades and usually shorter than the bracts they subtend; blades nearly linear to oblong or narrowly elliptic, 2–5 cm, obscurely crenate to entire; pistillate bracts usually arcuate-recurved, 5–10 mm, shallowly lobed into 9–15 deltoid or ovate, usually glandular segments; staminate spike mostly 5–15 mm, usually conspicuously exceeding the bracts; seeds 3 (except in var. monococca), 1.5–2 mm; 2n=40. Moist or dry, sandy soil, open woods, fields, and meadows; Me. to Wis., s. to Fla. and Tex. Many southern plants (n. to s. Ill.) have more elongate staminate spikes, to 3 or 4 cm, and have been distinguished as var. fraseri (Müll. Arg.) Weath. The Ozarkian var. monococca Engelm., differing from var. gracilens in its one-seeded fruits, extends n. to Mo. and s. Ill. (A. monococca)
More
Herbs, annual, 1–6 dm, monoecious. Stems erect, pubescent. Leaves: petiole 0.2–1.2(–1.8) cm; blade oblong-lanceolate to linear-lanceolate, 1.7–6 × 0.4–2 cm, base cuneate, margins serrate to crenate to subentire, apex obtuse to acute. Inflorescences bisexual, axillary; peduncle 0.1–0.6 cm, pistillate portion 0.7–1.3 × 0.8–1.5 cm or pistillate bract solitary, staminate portion 0.2–2.6 cm; allomorphic pistillate flowers absent. Pistillate bracts loosely arranged to crowded (inflorescence axis clearly to scarcely visible between bracts) or solitary, 8–14 × 11–17 mm, abaxial surface sparsely pubescent, red sessile-glandular, and sometimes stipitate-glandular; lobes (7–)9–13(–15), deltate, 1/10–1/4 bract length. Pistillate flowers: pistil 3-carpellate; styles multifid or laciniate. Capsules smooth, pubescent. Seeds 1.1–1.9 mm, minutely pitted.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.75
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Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Environment

Light -
Soil humidity -
Soil texture 1-6
Soil acidity -
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Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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Images

Acalypha gracilens unspecified picture

Distribution

Acalypha gracilens world distribution map, present in Åland Islands, Georgia, Malaysia, Nicaragua, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:1278-2
WFO ID wfo-0000943296
COL ID 8RZ6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acalypha virginica Acalypha gracilens Acalypha virginica var. fraseri Acalypha virginica var. gracilens Acalypha virginica var. gracilescens Acalypha virginica var. intermedia Acalypha virginica var. ovalifolia Acalypha virginica var. ramosa Acalypha virginica var. rhombifolia Acalypha virginica var. texana Acalypha gracilens var. gracilens Acalypha gracilens var. fraseri Acalypha gracilens var. delzii Acalypha virginica var. gracilens