Schwalbea

Linnaeus

Sp. Pl. 2: 606. 1753.

Common names: Chaffseed
EndemicConservation concern
Etymology: For Christian Georg Schwalbe, eighteenth-century medical botanist
Treatment appears in FNA Volume 17. Treatment on page 459. Mentioned on page 458.

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.

... more about "Schwalbea"
long-triangular +
short-triangular +
Bruce A. Sorrie +
Linnaeus +
not leathery +  and not fleshy +
tubular +
loculicidal +  and septicidal +
semiwoody +
Chaffseed +
suffused with purple +  and pale-yellow +
e United States +
For Christian Georg Schwalbe, eighteenth-century medical botanist +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
axillary +  and terminal +
deciduous +
lobed +, toothed +  and entire +
tenuinucellate +  and unitegmic +
campylotropous-like +
kirkman1998a +
flattened +
Endemic +  and Conservation concern +
subequal +
aerial +  and subterranean +
not fleshy +
Schwalbea +
Orobanchaceae +