Isopyrum L.

Isopyre (fr)

Genus

Angiosperms > Ranunculales > Ranunculaceae

Characteristics

Herbs perennial. Stem erect, smooth, glabrous. Leaves 2 × ternately compound. Basal leaves abaxially pale green, adaxially green. Stem leaves shortly petiolate; petiole sheathed; sheath white, membranous. Inflorescences panicled or cymose; bracts 1 or 2 × ternately compound, 3-lobed, or 3-sect. Flowers radially symmetric, small. Pedicel slender. Sepals 5, white, petaloid. Petals 5, much smaller than sepals, basally tubulose or shallowly scrotiform and shortly clawed. Stamens 20--30; filaments sublinear, 1-veined; anthers yellow, broadly ellipsoid. Pistils 1--5, free, erect, narrowly ovate; ovules numerous, arranged in 2 rows on ventral suture. Follicles 1--5, ellipsoid-ovoid, flat, horizontally veined, apically with a curved beak. Seeds numerous, black to blackish, ovoid to ellipsoid, smooth.
More
Sep mostly 5, petaloid; pet none; staminodes in ours none; stamens numerous, the filaments narrowly clavate; pistils few; fr follicular; perennial herbs with basal and alternate cauline, 1–3-ternately compound lvs and 1–few white fls terminating the stem or on axillary peduncles. 25, N. Temp.
Life form perennial
Growth form herb
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Sexuality hermaphrodite
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Cultivation

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Images

Isopyrum unspecified picture

Distribution

Isopyrum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:331677-2
WFO ID wfo-4000019317
COL ID 55LN
BDTFX ID 99451
INPN ID 606918
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Isopyrum

Lower taxons

Isopyrum manshuricum Isopyrum anemonoides Isopyrum ludlowii Isopyrum thalictroides