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Key to families | Table of families and genera
Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
[Annual] perennial herb. Stem: ascending to erect, glabrous or hairy, ribs 0. Leaf: cauline, alternate, petioled or not; ocrea funnel-shaped, papery, persistent or not, glabrous to scabrous; blade narrowly lanceolate to ovate, entire. Inflorescence: axillary, terminal, raceme- or panicle-like; peduncle present or 0; pedicel present; flowers 1–5. Flower: bisexual, base stalk-like or not; perianth not enlarging, rotate, cream or green- to yellow-white or pink, glabrous, parts 5, fused ± 1/4, petal-like, ± of 2 kinds, outer 2 < inner 3, ± obtuse; stamens 8, filaments free, not wider basally, fused to perianth tube or not, glabrous, anthers ovate to elliptic, yellow to pink or red-purple; styles 3, erect to spreading, fused basally or not, stigmas head-like. Fruit: included or exserted, unwinged, 3-angled, yellow- or dark-brown, faces subequal. Seed: embryo generally curved.
± 25 species: western North America, Europe, Asia. (Greek: point, angle, probably from 3-angled fruit)
Unabridged etymology: (Greek: ak, point, gone, angle, probably from 3-angled fruit)
Unabridged synonyms: [Polygonum sect. Aconogonon Meisn.]
1. Stem (50)70–150(200) cm; inflorescence generally ± terminal, panicle-like ..... A. phytolaccifolium
1' Stem 10–35(50) cm; inflorescence axillary, raceme-like
2. Petiole 0.2–0.6(10) mm; leaf blade ± glabrous to scabrous, yellow-green, tip ± acute ..... A. davisiae
2' Petiole 4–12(15) mm; leaf blade ± glabrous to soft-hairy, dark-green becoming ± red, tip ± obtuse ..... A. newberryi
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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