Flora of North America species comparison

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Schwalbea

chaffseed, schwalbea
Habit 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.

Schwalbea
Distribution
from USDA
e United States
[BONAP county map]
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 459. Author: Bruce A. Sorrie.
Parent taxa Orobanchaceae
Subordinate taxa
S. americana
Name authority Linnaeus: Sp. Pl. 2: 606. (1753): Gen. Pl. ed. 5, 265. (1754)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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