Flora of North America species comparison

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Cordylanthus nidularius

bird-on-nest, Mount Diablo bird's-beak, Mt. Diablo bird's-beak
Stems

decumbent, 5–10(–15) cm, glandular-puberulent and pilose.
Leaves

glandular-puberulent and pilose;

proximal 10–30 mm, margins entire or 3-lobed, lobes 1–2 mm wide;

distal 10–20 × 1 mm, margins entire.
Inflorescences

spikes, 2- or 3-flowered, or flowers solitary;

bracts 2 or 3, 10–15 mm, margins 3-lobed, lobes purple distally, linear to filiform.
Pedicels

bracteoles 10–15 mm, margins entire.
Flowers

calyx 10–16 mm, tube 0 mm, apex entire;

corolla white with purple veins, 10–15 mm, throat 5–7(–9) mm diam., abaxial lip 3–5 mm, ca. equal to and appressed to adaxial;

stamens 4, filaments hairy, fertile pollen sacs 2 per filament, equal.
Capsules

oblong-ovoid, 5–7 mm.
Seeds

7–10, dark brown, ovoid to reniform, 1.5–2 mm, irregularly striate.
2n

= 28.

Cordylanthus nidularius
Phenology Flowering Jul–Aug.
Habitat Dry, open serpentine in chaparral.
Elevation 600–800 m. (2000–2600 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Cordylanthus nidularius is the only member of the genus with decumbent stems. The species is similar to C. tenuis; it differs in its white (versus pale yellow) corollas and decumbent (versus erect to ascending) stems. It grows on the eastern slopes of Mt. Diablo.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 673.
Parent taxa Orobanchaceae > Cordylanthus
Sibling taxa
C. capitatus, C. eremicus, C. kingii, C. laxiflorus, C. nevinii, C. parviflorus, C. pilosus, C. pringlei, C. ramosus, C. rigidus, C. tenuis, C. wrightii
Name authority J. T. Howell: Leafl. W. Bot. 3: 207. (1943)
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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