Flora of North America species comparison

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Cordylanthus tenuis subsp. brunneus

Cordylanthus tenuis subsp. viscidus
Photo is of parent taxon

serpentine bird's beak
Photo is of parent taxon

slender bird's beak, sticky birdbeak, viscid bird's beak
Stems

glabrous proximally, glandular-puberulent distally.

densely glandular-puberulent and pilose.
Leaves

green, sometimes tinged purple, entire or 3-lobed, lobes filiform.

green to gray-green, 3-lobed, lobes linear.
Inflorescences

1- or 2-flowered, flowers in loose clusters;

bracts green to purple, entire or 3-lobed, puberulent, often glabrous distally, without long hairs.

loosely 1–3-flowered;

bracts gray-green, 3-lobed, pilose with long hairs.
Flowers

corolla 12–16 mm.

corolla 10–18 mm.
2n

= 28.

Cordylanthus tenuis subsp. brunneus

Cordylanthus tenuis subsp. viscidus
Phenology Flowering Jun–Jul. Flowering Jul–Sep.
Habitat Serpentine in mixed evergreen forests and chaparral. Serpentine in pine woodlands.
Elevation 200–1400 m. (700–4600 ft.) 200–2000 m. (700–6600 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; OR
[BONAP county map]
Discussion

Subspecies brunneus is a serpentine endemic with glabrous or slightly puberulent stems and leaves with filiform lobes. T. I. Chuang and L. R. Heckard (1986) recognized subsp. capillaris as a distinct subspecies, closely related to subsp. brunneus but distinguished by glabrous stems and three-lobed proximal bracts. These characteristics are not reliable, varying even on a single plant. When combined, the two form a coherent subspecies distinguished by filiform leaf lobes, tendency to grow on serpentine, and distribution.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 677. FNA vol. 17, p. 677.
Parent taxa Orobanchaceae > Cordylanthus > Cordylanthus tenuis Orobanchaceae > Cordylanthus > Cordylanthus tenuis
Sibling taxa
C. tenuis subsp. barbatus, C. tenuis subsp. pallescens, C. tenuis subsp. tenuis, C. tenuis subsp. viscidus
C. tenuis subsp. barbatus, C. tenuis subsp. brunneus, C. tenuis subsp. pallescens, C. tenuis subsp. tenuis
Synonyms C. pilosus var. brunneus, C. brunneus, C. capillaris, C. tenuis subsp. capillaris Adenostegia viscida, C. viscidus
Name authority (Jepson) Munz: Aliso 4: 98. (1958) (Howell) T. I. Chuang & Heckard: Syst. Bot. Monogr. 10: 56. (1986)
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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