Photos / Sounds
What
Giant Four o'Clock (Mirabilis multiflora var. pubescens)Observer
leslie_fsDescription
Nyctaginaceae (like Abronia sand verbena). Multiple other species of Mirabilis in desert and non desert.
Photos / Sounds
What
California Centaury (Zeltnera venusta)Observer
leslie_fsDescription
Gentianaceae. Scrub, chaparral, grassland.
Photos / Sounds
What
Scotch Broom (Cytisus scoparius)Observer
leslie_fsDescription
Angled stem. Wings also may be solid yellow. Younger stems have sessile simple leaves. Older stems have petioled leaflets of 3. Fruits flat, brown or black (when mature; green when new), glabrous except margin.
Photos / Sounds
What
Pink-Sorrel (Oxalis articulata)Observer
leslie_fsDescription
Noticed within multiple suburban yards and open lots and roadsides in neighborhoods around Larkspur and Fairfax. Spreads on its own and appears invasive and a potential issue. Non-native.
Photos / Sounds
What
Creamcups (Platystemon californicus)Observer
leslie_fsDescription
Serpentine grassland. Papaveraceae.
Photos / Sounds
What
Shepherd's-Needle (Scandix pecten-veneris)Observer
leslie_fsDescription
Uneven petals.
Annual.
Apiaceae.
Photos / Sounds
What
Gambel's Milkvetch (Astragalus gambelianus)Observer
leslie_fsDescription
Banner similar length to wings (A. breweri's banner is longer than wings)
Photos / Sounds
What
Lilac Oysterling (Panus conchatus)Observer
leslie_fsDescription
Growing on what looked like an oak branch. A nice purple color. Will change color or vibrancy of color with different moisture levels.
Photos / Sounds
What
California Black Trumpet (Craterellus calicornucopioides)Observer
leslie_fsDescription
Near a tan oak
Photos / Sounds
What
Family GeoglossaceaeObserver
leslie_fsDescription
Within forest of bay, oak, tan oak, madrone
Photos / Sounds
What
Orange Bonnet (Mycena acicula)Observer
leslie_fsDescription
Within forest of redwood, oak, tan oak, bay, madrone.
Photos / Sounds
What
Eyelash Cups (Genus Scutellinia)Observer
leslie_fsDescription
Found on a log next to a stream close to Phoenix Lake area. Also found on a different part of the trail dotted on small pieces of wood. Unsure which tree species the wood was. Within a shady cool forest of bay, tan oak, madrone, and oaks. Tiny, on average ~2-5 cm wide. Eyelashes viewable with a hand lens.
Photos / Sounds
What
Vinegar Cup (Helvella acetabulum)Observer
leslie_fsDescription
Near Phoenix Lake along the trail in a sunny area under oaks, bay laurels, and tan oaks. Deep vein like support structures on the underside. Pale yellow colored wavy cup. Spores puff out the center in warm weather looking like smoke.
Photos / Sounds
What
Pore Lichens (Genus Pertusaria)Observer
leslie_fsDescription
Possibly Pertusaria amara
Photos / Sounds
What
Coral Lichens (Genus Sphaerophorus)Observer
leslie_fsDescription
Possibly Ramalina roesleri, or the other species suggested in the comments.
I forgot to take notes on what tree species it was on but probably on an oak or bay laurel because there were many around where I was hiking.
Photos / Sounds
What
Beaked Twig Gall Wasp (Burnettweldia plumbella)Observer
leslie_fsDescription
Gall formed by a cynipid wasp on the west coast. Can be greenish with yellow spots or lumps, or wine red with yellow spots or lumps. There is a curved pointed beak opposite the end of attachment. Occurs on blue, scrub, live, and leather oaks in late spring and early summer. Often remains on the oaks for several years. Wasps emerge November and December. - Ron Russo Field Guide to Plant Galls
Photos / Sounds
What
Obtuseleaf Scleropodium Moss (Scleropodium obtusifolium)Observer
leslie_fsDescription
Growing on rocks alongside and within a stream
Photos / Sounds
What
Hair-pointed Grimmia (Grimmia trichophylla)Observer
leslie_fsDescription
Grows in clumps or patches (acrocarpous)
