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Aristolochiaceae

Aristolochiaceae
Aristolochiaceae image
eugene jercinovic
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Kerry Barringer
Alan T. Whittemore in Flora of North America (vol. 3)
Herbs or lianas [shrubs, rarely trees], deciduous or evergreen, often aromatic. Wood with broad medullary rays. Leaves alternate, simple, petiolate. Leaf blade unlobed, margins entire. Inflorescences terminal or axillary, racemes or solitary flowers, rarely fan-shaped cymes. Flowers bisexual; calyx enlarged, petaloid, usually tubular, [1-,] 3-, [6-, rarely 5-]merous, lobes valvate; corolla usually reduced to scales or absent; stamens 5, 6, or 12 [multiples of 3 or 5], free or adnate to styles and stigmas, forming gynostemium; anthers extrorse; pistil 1, 4-6-carpellate; ovary inferior, partly inferior, or superior; placentation axile (and ovaries 4-6-locular) or parietal; ovules many per locule, anatropous. Fruits capsules [follicles], regularly to irregularly loculicidal, rarely indehiscent [septicidal]. Seeds often flattened; endosperm copious.
JANAS 32(1)
PLANT: Perennial herbs, shrubs or often vines. LEAVES: alternate, simple; stipules absent. INFLORESCENCE: usually axillary cymes, racemes, or the flowers solitary. FLOWERS: perfect, actinomorphic or zygomorphic; calyx 3-6-lobed, often enlarged and petal-like; corolla absent or reduced to small scales; stamens 5-many, free, or adnate to the style and stigma, forming a gynostemium; pistil 1, 4-6 carpelled; ovary inferior or half-inferior. FRUIT: a capsule. SEEDS: numerous. REFERENCES: Mason, Charles T., Jr. 1999. Aristolochiaceae. Ariz.-Nev. Acad. Sci. 32(1).
Species within checklist: Collected for the "Flora of the Carolinas"
Aristolochia macrophylla
Media resource of Aristolochia macrophylla
Aristolochia serpentaria
Media resource of Aristolochia serpentaria
Asarum arifolium
Media resource of Asarum arifolium
Asarum canadense
Media resource of Asarum canadense
Hexastylis arifolia
Media resource of Hexastylis arifolia
Hexastylis lewisii
Media resource of Hexastylis lewisii
Hexastylis minor
Media resource of Hexastylis minor
Hexastylis naniflora
Media resource of Hexastylis naniflora
Hexastylis shuttleworthii
Media resource of Hexastylis shuttleworthii
Hexastylis sorriei
Media resource of Hexastylis sorriei
Hexastylis virginica
Media resource of Hexastylis virginica
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