Flora of North America species comparison

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Cordylanthus tenuis subsp. pallescens

Cordylanthus tenuis subsp. barbatus
Photo is of parent taxon

pale bird's-beak, pallid bird's beak
Photo is of parent taxon

Fresno County bird's-beak
Stems

sparsely puberulent and/or glandular-puberulent and, often, pilose.

puberulent, glandular-puberulent and often pilose.
Leaves

yellow-green, entire or 3-lobed, lobes linear to linear-lanceolate.

green, entire or 3-lobed, lobes linear to linear-lanceolate.
Inflorescences

4–6-flowered;

bracts yellow-green, 3-lobed or entire, sparsely pilose with long hairs.

3–7-flowered, flowers in dense clusters;

bracts green, 3-lobed, hirsute with long hairs.
Flowers

corolla 10–15 mm.

corolla 15–18 mm.
2n

= 28.

= 28.

Cordylanthus tenuis subsp. pallescens

Cordylanthus tenuis subsp. barbatus
Phenology Flowering Jun–Sep. Flowering Jul–Aug.
Habitat Open volcanic alluvium. Open, mixed deciduous forests.
Elevation 900–1200 m. (3000–3900 ft.) 1300–2400 m. (4300–7900 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Subspecies pallescens grows in Siskiyou County near Black Butte and the town of Weed (B. L. Wilson et al. 2014). It is similar to subsp. viscidus, differing in its yellow-green color and inflorescences with four to six pale flowers.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies barbatus is known from Fresno County. The long, dense hairs on the inflorescence bracts help to identify it.

(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. brunneus, C. tenuis subsp. tenuis, C. tenuis subsp. viscidus
C. tenuis subsp. brunneus, C. tenuis subsp. pallescens, C. tenuis subsp. tenuis, C. tenuis subsp. viscidus
Synonyms C. pallescens
Name authority (Pennell) T. I. Chuang & Heckard: Syst. Bot. Monogr. 10: 55. (1986) T. I. Chuang & Heckard: Syst. Bot. Monogr. 10: 58, figs. 3l3, 10k, 22h–n. (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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