Difference between revisions of "Schwalbea"
Sp. Pl. 2: 606. 1753.
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Latest revision as of 20:36, 5 November 2020
Herbs, perennial; hemiparasitic, caudex knotty, semiwoody. Stems erect, not fleshy, densely pubescent. Leaves cauline, alternate; petiole absent; blade not fleshy, not leathery, margins entire. Inflorescences terminal, racemes; bracts absent. Pedicels present; bracteoles present. Flowers: sepals 5, calyx bilaterally symmetric, tubular, abaxial lobes long-triangular, larger and with 2 lateral lobes and larger central lobe 3-notched at summit, adaxial short-triangular; petals 5, corolla pale yellow, strongly suffused with purple distally, strongly bilabiate, tubular, abaxial lobes 3, adaxial 2, adaxial lip ± galeate; stamens 4, equal, filaments pilose; staminode 0; ovary 2-locular, placentation axile; stigma capitate. Capsules: dehiscence septicidal and loculicidal. Seeds ca. 300, brown or amber, linear, flattened, ± twisted, wings present. x = 18.
Distribution
e United States.
Discussion
Species 1.