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Actaea
Family: Ranunculaceae
Actaea image
Max Licher
  • FNA
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Bruce A. Ford in Flora of North America (vol. 3)
Herbs , perennial, from caudices ca. 1 cm thick. Leaves cauline, alternate, petiolate. Leaf blade 1-3-ternately or -pinnately compound; leaflets ovate to narrowly elliptic, unlobed to 3-lobed, margins sharply cleft, irregularly dentate. Inflorescences terminal or axillary, 25(-more)-flowered racemes, 2-17 cm; bracts leaflike, sometimes present between leaves and inflorescence, bracteoles 1-2, at base of each pedicel, not forming involucre. Flowers bisexual, radially symmetric; sepals not persistent in fruit, 3-5, whitish green, plane, orbiculate, 2-4.5 mm; petals 4-10, distinct, cream colored, plane, spatulate to obovate, clawed, 2-4.5 mm; nectary absent; stamens 15-50; filaments filiform; staminodes absent between stamens and pistils; pistil 1, simple; ovules many per pistil; style very short or absent. Fruits berries, solitary, sessile, broadly ellipsoid to nearly globose, sides smooth; beak a wart, terminal, to 1 mm. Seeds dark brown to reddish brown, obconic to wedge-shaped, rugulose. x = 8. The two species in North America are similar to each other vegetatively and differ primarily in flower and fruit characteristics.

Vascular plants of NE US and adjacent Canada
Sep 3-5, obovate, petaloid, caducous; pet 4-10, deciduous, spatulate to obovate, clawed; stamens numerous, the elongate filaments mostly widened upwards; anthers oval; pistil 1; stigma broad, sessile, bilobed; fr 1- to several-seeded berry; poisonous, odoriferous perennial herbs with large, ternately 2-3 times compound lvs, sharply toothed lfls, and small, white fls in a dense, long-peduncled, terminal raceme. 5, circumboreal.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Actaea alba
Image of Actaea alba
Actaea americana
Image of Actaea americana
Actaea asiatica
Image of Actaea asiatica
Actaea biternata
Image of Actaea biternata
Actaea cimicifuga
Image of Actaea cimicifuga
Actaea cordifolia
Image of Actaea cordifolia
Actaea dahurica
Image of Actaea dahurica
Actaea elata
Image of Actaea elata
Actaea europaea
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not available
Actaea heracleifolia
Image of Actaea heracleifolia
Actaea japonica
Image of Actaea japonica
Actaea laciniata
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not available
Actaea matsumurae
Image of Actaea matsumurae
Actaea pachypoda
Image of Actaea pachypoda
Actaea podocarpa
Image of Actaea podocarpa
Actaea racemosa
Image of Actaea racemosa
Actaea rubifolia
Image of Actaea rubifolia
Actaea rubra
Image of Actaea rubra
Actaea simplex
Image of Actaea simplex
Actaea spicata
Image of Actaea spicata
Actaea viridiflora
Image of Actaea viridiflora
Actaea x ludovici
Image of Actaea x ludovici
Actaea x ludovicii
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not available
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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