Diplacus graniticola |
Diplacus aridus |
|
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granite-crack monkeyflower |
low bush monkeyflower, San Diego bush monkeyflower |
|
Habit | Herbs, annual, herbage usually drying dark. | Subshrubs. |
Stems | erect, 60–120(–150) mm, nodes 4–15(–20), internodes shorter than leaves, glandular-villous with gland-tipped hairs 1–1.6 mm. |
erect, 80–330 mm, glabrous. |
Leaves | usually cauline, relatively even-sized; petiole weakly delimited; blade usually lanceolate to ovate-lanceolate, 20–40 × 4–12 mm, margins entire, rarely toothed, plane, apex rounded to obtuse or acute, surfaces: proximals often glabrate abaxially, distals glandular-villous. |
cauline, relatively even-sized; petiole absent or short; blade narrowly ovate to elliptic-lanceolate, elliptic, or oblanceolate, 20–50 × 3–15 mm, margins dentate to serrate, plane or revolute, apex obtuse to acute, surfaces glabrous. |
Pedicels | 1–3 mm in fruit. |
3–10 mm in fruit. |
Flowers | 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
2 per node, chasmogamous. |
Styles | glandular-puberulent. |
minutely glandular. |
Corollas | nearly white or pale lavender to pinkish or pale to dark magenta, each lobe with a dark medial line extending nearly to tip, throat with a dark red or purple splotch at junction of each abaxial lobe and adjacent lateral lobe, throat floor sometimes with 2 adjacent white splotches at lateral lobe bases, palate ridges yellow, tube-throat 15–20 mm, limb 10–16 mm diam., bilabiate. |
pale yellow to cream or nearly white, pale orange, golden yellow, or orange-yellow, not spotted or striped, palate ridges golden yellow, throat internally glabrous, tube-throat 37–52 mm, limb 15–22 mm diam., not bilabiate, lobes entire. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, 8–12 mm, glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs narrow, darkened, blackish, thickened, strongly raised, intercostal areas green to purple, not membranous. |
inflated in fruit, 35–40 mm, glabrous, tube distinctly dilated distally, lobes subequal, apex acute, ribs green, intercostal areas light green. |
Capsules | 6–10 mm. |
20–36 mm. |
Anthers | included, ciliate. |
exserted (at throat), glabrous. |
Stigmas | included, lobes unequal, abaxial 1.5 times adaxial. |
exserted, lobes equal. |
2n | = 16. |
= 20. |
Diplacus graniticola |
Diplacus aridus |
|
Phenology | Flowering Apr–Sep. | Flowering Apr–Jun. |
Habitat | Granite cracks and crevices. | Rock walls, dry rocky soils. |
Elevation | 300–2100 m. (1000–6900 ft.) | 200–1500 m. (700–4900 ft.) |
Distribution |
CA
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CA
|
Discussion | Diplacus graniticola occurs in the Sierra Nevada from Tuolumne County to northern Tulare County. These plants previously were identified within D. layneae, with which they are partially sympatric; where these two occur together, D. layneae often grows in granite-derived sand and gravel immediately adjacent to the granite rock habitat of D. graniticola. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Diplacus aridus is known from Imperial and San Diego counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 438. | FNA vol. 17, p. 452. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus aridus, M. aurantiacus var. aridus | |
Name authority | Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017) | Abrams: Bull. Torrey Bot. Club 32: 540. (1905) |
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