Flora of North America species comparison

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Conopholis americana

American cancer-root, American squaw-root, bear corn, conopholis d'amérique, squawroot
Stems

6–20 cm.
Leaves

triangular to broadly lanceolate, 5.5–18 × 5–12 mm, glabrous or minutely hairy along margins.
Bracts

mostly concealing calyces, lanceolate, 5–18 × 2–8 mm, margins entire or minutely erose, not ciliate, glabrous, veins visible or obscure.
Pedicels

0–4(–6) mm;

bracteoles 2.
Flowers

calyx 3–8 mm, lobe margins entire or erose, not ciliate, apex acute;

corolla 8–14 mm;

anthers glabrous.
Capsules

5–15 × 5–12 mm;

styles persistent.

Conopholis americana
Phenology Flowering Feb–Jun.
Habitat Under oaks in moist deciduous or mixed deciduous-coniferous woods.
Elevation 30–600 m. (100–2000 ft.)
Distribution
from FNA
AL; CT; DC; DE; FL; GA; IL; IN; KY; MA; MD; ME; MI; NC; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WI; WV; MB; NS; ON; QC; s Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

A. G. Rodrigues et al. (2013) noted the existence of a single historical specimen from Jeff Davis County, Texas, and suggested that this represented a historical disjunction. However, it is also possible that the specimen in question was mislabeled.

V. Baird and J. L. Riopel (1986) documented the dispersal of Conopholis americana in the eastern United States by deer and rodents.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 462.
Parent taxa Orobanchaceae > Conopholis
Sibling taxa
C. alpina
Synonyms Orobanche americana
Name authority (Linnaeus) Wallroth: Orobanches Gen. Diask., 78. (1825)
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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