Strange looking, prostrate lupine. Susie Bennett from the Parks Conservancy keyed it for me.
thought this was ocean spray, but iNat thinks it's ceanothus....
Species common name: Few-Flowered Blue-Eyed Mary. Plantaginaceae, Lamiales.
ID genus to species: leaves generally linear to oblong, entire (not lance-deltate, coarsely toothed); proximal pedicels > calyx; calyx > fruit, lobes widely spreading in fruit; inner face of calyx lobes not hairy, tips sharp to long-tapered (not blunt); corolla with pale regions; upper filaments sparsely hairy (not glabrous); fruit generally red-blotched.
ID from species to variety: corolla 5–8 mm (not 7-20mm), throat barely angled to tube (not strongly angled), pouch hidden by calyx.
The Jepson key specifies that for C. sparsiflora, "upper filaments, middle lower corolla lobe sparsely long-hairy near tip." In the population I observed, however, the middle lower corolla lobe isn't hairy, and the upper filaments are only hairy proximally. Also, mid-stem leaves tend to be toothed, not entire.
This specimen is unusually small, probably because it's growing from a small crack in the pavement. Hypericaceae, Malpighiales. Hypericum: Gr., over the heath. Perforatum: refers to the clear-dotted leaves, which appear perforated.
ID features: perennial herb; sterile axillary branches generally 2-10 cm; leaf narrowly oblong, tip obtuse; petals >5 mm.
Rosaceae, Rosales. Demissa: Lat., dropped, descended, slanted.
ID features: leaves deciduous, finely serrate; inflorescence an elongate raceme (not short, flat-top), flowers 15-many (not fewer), leafy at base; fruit 6-14mm (not larger).
Asteraceae, Asterales. Hieracium: Gr., little hawk.
ID features: ligules white.
Jepson: Asyneuma prenanthoides. Campanulaceae, Asterales. Asyneuma: Gr., possibly "not together" (divided corolla). Prenanthoides: Gr., resembling Prenanthes, from prenes (facing downwards) + anthos, referring to drooping flower.
ID features: perennial herb; flowers generally 2 to 4+ per node (not just 1); corolla cut >= 3/4 to base (not less), lobes linear (not triangular).
Saxifragaceae, Saxifragales. Darmer: German horticulturalist, 19th century.
Only species in genus. Unlikely to be mistaken for another plant, at least not in this stage of growth. Other rhubarbs aren't closely related, don't grow in nature around here, and can be easily distinguished based on these photos.
Fagaceae, Fagales.
ID features: acorn cup scales thin, not tubercled; leaf (6)9-20 cm, moderately to deeply lobed (not entire to toothed), deciduous.
Ericaceae, Ericales. Viscida: Lat., sticky.
ID features: burls 0; leaf blade white-glaucous, dull, glabrous or densely glandular-hairy, surfaces similar in color and hairiness; infloresence panicle; nascent inflorescence bracts fleshy (not leaf-like), scale-like or deltate, sparsely short-nonglandular-hairy; nascent inflorescence axis densely glandular-sticky-hairy; fruit depressed-spheric.
Apocynaceae, Gentianales. Androsaemifolium: leaves like Androsaemum, an obsolete name for Hypericum meaning man-blood, allegedly referring to red sap in H. perforatum.
ID features: leaf dark-green adaxially (not yellow-green); corolla red-purple or pink to white (not green); calyx << corolla tube (not =).