Flora of North America species comparison

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Pseudorontium cyathiferum

deep canyon snapdragon, dog's-mouth
Stems

15–35(–70) cm.
Leaves

petiole 4–15 mm;

blade ovate to broadly ovate, 30–40 × 20–25 mm, smaller distally.
Pedicels

1–3 mm, longer in fruit, glandular-hairy.
Flowers

calyx lobes equal, 4–5 mm in flower, 6.5–9 mm in fruit, glandular-hairy;

corolla 8–10 mm, abaxial lip cream, often with darker veins, palate white with yellow spots, furrowed, adaxial lip cream with deep purple veins;

staminode 0–1 mm.
Capsules

pendent, globular, 5–8 mm, sparsely glandular-hairy.
Seeds

1.5–2.5 mm, ridged and tuberculate dorsally, winged adaxially.
2n

= 26.

Pseudorontium cyathiferum
Phenology Flowering Jan–Apr.
Habitat Rocky slopes, washes.
Elevation 0–800 m. (0–2600 ft.)
Distribution
from FNA
AZ; CA; Mexico (Baja California, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Plants of Pseudorontium cyathiferum will flower and set fruit at any time of the year if moisture is available. Sand grains often stick to the viscid hairs, covering the plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 43.
Parent taxa Plantaginaceae > Pseudorontium
Synonyms Antirrhinum cyathiferum, A. chytrospermum
Name authority (Bentham) Rothmaler: Feddes Repert. Spec. Nov. Regni Veg. 52: 33. (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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