familyRanunculaceae
genusActaea
Show Lower Taxa
Difference between revisions of "Actaea"
Sp. Pl. 1: 504. 175.
Gen. Pl. ed. 5, 222. 1754.
Common names: Baneberry necklaceweed cohosh actée
Etymology: Greek, aktea, ancient name for the elder, probably for leaf similarity
Treatment appears in FNA Volume 3.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, from caudices ca. 1 cm thick. <b>Leaves</b> cauline, alternate, petiolate. <b>Leaf</b> blade 1-3-ternately or -pinnately compound; leaflets ovate to narrowly elliptic, unlobed to 3-lobed, margins sharply cleft, irregularly dentate. <b>Inflorescences</b> 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. <b>Flowers</b> 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. <b>Fruits</b> berries, solitary, sessile, broadly ellipsoid to nearly globose, sides smooth; beak a wart, terminal, to 1 mm. <b>Seeds</b> dark brown to reddish brown, obconic to wedge-shaped, rugulose. <b>x</b> = 8.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution=Temperate to cool forests throughout Northern Hemisphere | + | |distribution=Temperate to cool forests throughout Northern Hemisphere. |
|discussion=<p>Species ca. 8 (2 in the flora).</p><!-- | |discussion=<p>Species ca. 8 (2 in the flora).</p><!-- | ||
--><p>The two species in North America are similar to each other vegetatively and differ primarily in flower and fruit characteristics.</p> | --><p>The two species in North America are similar to each other vegetatively and differ primarily in flower and fruit characteristics.</p> | ||
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|basionyms= | |basionyms= | ||
|family=Ranunculaceae | |family=Ranunculaceae | ||
| − | |distribution=Temperate to cool forests throughout Northern Hemisphere | + | |distribution=Temperate to cool forests throughout Northern Hemisphere. |
|reference=hulten1971a;keener1977a;pellmyr1985a | |reference=hulten1971a;keener1977a;pellmyr1985a | ||
|publication title=Sp. Pl.;Gen. Pl. ed. | |publication title=Sp. Pl.;Gen. Pl. ed. | ||
|publication year=;1754 | |publication year=;1754 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_1120.xml |
|genus=Actaea | |genus=Actaea | ||
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-->[[Category:Treatment]][[Category:Ranunculaceae]] | -->[[Category:Treatment]][[Category:Ranunculaceae]] | ||
Revision as of 14:32, 27 July 2019
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.
Distribution
Temperate to cool forests throughout Northern Hemisphere.
Discussion
Species ca. 8 (2 in the flora).
The two species in North America are similar to each other vegetatively and differ primarily in flower and fruit characteristics.
Selected References
Lower Taxa
Key
| 1 | Pedicel in fruit bright red, stout, (0.7–)0.9–2.2(–3) mm diam., ± as thick as axis of raceme; stigma at anthesis as broad as or broader than ovary, 1.5–2.8 mm diam. in flower and fruit; petals truncate or cleft, often antherlike at apex; berries white, very rarely red. | Actaea pachypoda |
| 1 | Pedicel in fruit dull green or brown, slender, 0.3–0.7 mm diam., thinner than axis of raceme; stigma at anthesis narrower than ovary, 0.7–1.2 mm diam. in flower and fruit; petals acute or obtuse, not cleft or antherlike at apex; berries red or white. | Actaea rubra |