Herbs, annual [perennial]; usually glabrous; roots fibrous [tuberous], (producing glucosinolates). Stems often trailing [climbing]; not branched. Leaves alternate, simple; usually stipules present; petiole present (often twining); blade (peltate), margins entire or sinuate. Inflorescences axillary, flowers solitary; bracts absent. Pedicels present. Flowers zygomorphic; sepals 5, imbricate, adaxial 1 (or 3) prolonged into slender nectariferous spur; petals 5 (sometimes fewer by abortion), imbricate, clawed, distal 2 smaller than the others; stamens 8, (barely exserted) in 2 whorls, unequal; anthers 2-celled, dehiscence longitudinal; pistil 1; ovary 3-carpellate, 3-locular; placentation axile; ovule (1 per locule, pendulous from apex), anatropous, bitegmic; style 1 (apical); stigmas 3, linear. Fruits schizocarps (mericarps), 1-seeded, fleshy or dry. Seeds 1, (greenish), ovoid; embryo straight; endosperm absent. Herbs, annual or perennial. Roots sometimes tuberous. Stems ± succulent, often climbing. Stipules sometimes present especially in seedlings. Leaves alternate; petiole long; leaf blade peltate or palmately lobed or divided. Inflorescences indeterminate, racemose, elongate, and stemlike or condensed and umbellate, with each flower subtended by a single leaf. Flowers bisexual, solitary, zygomorphic, large, on a long axillary pedicel. Sepals 5, imbricate, adaxial 1(or 3) extended into a long slender nectariferous spur. Petals 5 or some aborted, yellow, orange, blue, or purple, clawed, imbricate, 2 upper petals larger and connate with spur, others usually smaller and inserted in opening of spur. Stamens 8, 2-verticillate, distinct, unequal; anthers 2-celled, dehiscent by longitudinal slits. Ovary superior, 3-loculed, placentation axile; ovule 1 per locule, pendulous from axile apex, anatropous; style 1, apical; stigma linear, 3-lobed. Fruits separating into 3 1-seeded mericarps, fleshy or dry. Seed without endosperm; embryo straight. SELECTED REFERENCE Andersson, L. and S. Andersson. 2000. A molecular phylogeny of Tropaeolaceae and its systematic implications. Taxon 49: 721-736. SELECTED REFERENCE Andersson, L. and S. Andersson. 2000. A molecular phylogeny of Tropaeolaceae and its systematic implications. Taxon 49: 721-736. Herbs, annual [perennial]; usually glabrous; roots fibrous [tuberous], (producing glucosinolates). Stems often trailing [climbing]; not branched. Leaves alternate, simple; usually stipules present; petiole present (often twining); blade (peltate), margins entire or sinuate. Inflorescences axillary, flowers solitary; bracts absent. Pedicels present. Flowers zygomorphic; sepals 5, imbricate, adaxial 1 (or 3) prolonged into slender nectariferous spur; petals 5 (sometimes fewer by abortion), imbricate, clawed, distal 2 smaller than the others; stamens 8, (barely exserted) in 2 whorls, unequal; anthers 2-celled, dehiscence longitudinal; pistil 1; ovary 3-carpellate, 3-locular; placentation axile; ovule (1 per locule, pendulous from apex), anatropous, bitegmic; style 1 (apical); stigmas 3, linear. Fruits schizocarps (mericarps), 1-seeded, fleshy or dry. Seeds 1, (greenish), ovoid; embryo straight; endosperm absent. Herbs, annual or perennial. Roots sometimes tuberous. Stems ± succulent, often climbing. Stipules sometimes present especially in seedlings. Leaves alternate; petiole long; leaf blade peltate or palmately lobed or divided. Inflorescences indeterminate, racemose, elongate, and stemlike or condensed and umbellate, with each flower subtended by a single leaf. Flowers bisexual, solitary, zygomorphic, large, on a long axillary pedicel. Sepals 5, imbricate, adaxial 1(or 3) extended into a long slender nectariferous spur. Petals 5 or some aborted, yellow, orange, blue, or purple, clawed, imbricate, 2 upper petals larger and connate with spur, others usually smaller and inserted in opening of spur. Stamens 8, 2-verticillate, distinct, unequal; anthers 2-celled, dehiscent by longitudinal slits. Ovary superior, 3-loculed, placentation axile; ovule 1 per locule, pendulous from axile apex, anatropous; style 1, apical; stigma linear, 3-lobed. Fruits separating into 3 1-seeded mericarps, fleshy or dry. Seed without endosperm; embryo straight.General Information
Source: [
Source: [
Literature
Source: [
Flora of North America @ efloras.org
LiteratureFlora of China @ efloras.org
General Information
