Habit: Perennial herb, from taproot, hairs 0 or sparse.
Stem: reclining or erect, branched, 2--150 cm, 4-angled.
Leaf: cauline, also basal or not, generally lanceolate to ovate, thin to leathery, toothed, petiole 0 or short.
Inflorescence: flowers generally 2--4+ per node.
Flower: not inverted; corolla widely funnel-shaped, pale to deep blue, lobes lance-linear; ovary inferior, hemispheric, ribbed.
Fruit: open by 2--3 lateral pores.
Seed: 2 mm, oblong.
Species In Genus: +- 27 species: northern hemisphere; many cultivated, some medicinal.
Etymology: (Greek: possibly not together, from divided corolla)
Jepson eFlora Author: Nancy R. Morin
Unabridged Reference: McVaugh 1945 Bartonia 23:36Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
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