Pseudorontium cyathiferum

(Bentham) Rothmaler

Feddes Repert. Spec. Nov. Regni Veg. 52: 33. 1943.

Common names: Dog’s mouth
Illustrated
Basionym: Antirrhinum cyathiferum Bentham Bot. Voy. Sulphur, 40, plate 19. 1844
Synonyms: A. chytrospermum A. Gray
Treatment appears in FNA Volume 17. Treatment on page 43. Mentioned on page 42.

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.


Phenology: Flowering Jan–Apr.
Habitat: Rocky slopes, washes.
Elevation: 0–800 m.

Distribution

Ariz., Calif., Mexico (Baja California, Sonora).

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.

Selected References

None.

Lower Taxa

None.
... more about "Pseudorontium cyathiferum"
Kerry A. Barringer +  and Neil A. Harriman† +
(Bentham) Rothmaler +
Antirrhinum cyathiferum +
Dog’s mouth +
Ariz. +, Calif. +, Mexico (Baja California +  and Sonora). +
0–800 m. +
Rocky slopes, washes. +
Flowering Jan–Apr. +
Feddes Repert. Spec. Nov. Regni Veg. +
Illustrated +
A. chytrospermum +
Pseudorontium cyathiferum +
Pseudorontium +
species +