Pseudorontium cyathiferum

(Bentham) Rothmaler

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

Common names: Dog’s mouth
Illustrated
Basionyms: 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), Mexico (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"
cream +  and yellow spots +
Kerry A. Barringer +  and Neil A. Harriman† +
(Bentham) Rothmaler +
alternate +, opposite +, whorled +, helical +  and subopposite +
Antirrhinum cyathiferum +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
ovate;broadly ovate +
smaller +
not leathery +  and not fleshy +
20mm;25mm +
glandular-hairy +
glandular-hairy +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cupulate +
glandular-hairy +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Dog’s mouth +
personate +  and bilabiate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Ariz. +, Calif. +, Mexico (Baja California) +  and Mexico (Sonora) +
drupe-like +
0–800 m. +
curved +  and straight +
hairy +  and glabrous +
1 +  and 4 +
poricidal +, septicidal +, loculicidal +  and dehiscence +
Rocky slopes, washes. +
alternate +  and opposite +
persistent +  and deciduous +
linear;narrowly oblanceolate +
entire +  and subentire toothed or lobed +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
glandular-hairy +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
5 +  and 4 +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering Jan–Apr. +
Feddes Repert. Spec. Nov. Regni Veg. +
minute +
tuberculate +
Illustrated +
0 cm0 mm <br />0 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
filiform +
15 cm150 mm <br />0.15 m <br /> (35 cm350 mm <br />0.35 m <br />) +
A. chytrospermum +
Pseudorontium cyathiferum +
Pseudorontium +
species +
cupulate +