tidytips

genus Layia

Member of tarweeds and allies (tribe Madieae)
yellow daisies
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

There are no other wild species of this genus in the bay area.

Key features:

color(s) of ray petals
phyllary length?
glandular or not
stem purple streaked or not [not sure what this means; not visible in CalPhotos]
proximal leaf shape

ray petals may be yellow with white at the tips

tidy tips
Layia platyglossa

tidy tips
Layia platyglossa

ray petals are mostly yellow, but usually with white at the tips
glandular (e.g. on involucre, or as spots on peduncle)
phyllary tip (extending up the petal) ± as long as its folded base [example]
stem generally not purple-streaked [or spotted]
proximal leaves lobed ± ½ to midvein
scattered all around the bay

woodland tidytips
Layia gaillardioides

woodland tidytips
Layia gaillardioides

most have only yellow; only some have white or pale yellow tips
glandular
phyllary tip (extending up the petal) much shorter than its folded base [example] [CalPhotos shows at least one exception, but it may be misidentified]
stem purple-streaked, ascending, not strictly erect [dunno what this means; they look erect enough on CalPhotos]
proximal leaves serrate or lobed “< or > ½ to midvein”
scattered, generally *not* in woods

smooth tidytips
Layia chrysanthemoides

ray petals are mostly yellow, but with white or pale yellow at the tips
glandless (e.g. on involucre)
stem not purple-streaked
proximal leaves often lobed ± to midvein
oldish records at Sunol & Edgewood; otherwise mostly historical records

ray petals are always a single color

whitedaisy tidytips
Layia glandulosa

only white ray petals
glandular
Chabot

beach tidytips
Layia carnosa

only white ray petals
San Francisco, Pt. Reyes

tall tidytips
Layia hieracioides

tall tidytips
Layia hieracioides

ray petals are short, only yellow
scattered, but Windy Hill is the only place I visit regularly

3 observed taxons / 3 unobserved taxons / 1 key

Chris’s observations: 22 (20 are research grade)

Locations:

Edgewood Park & Natural Preserve: 8
Máyyan 'Ooyákma Coyote Ridge OSP: 4
Russian Ridge OSP: 3
Santa Teresa CP: 3
Coyote Lake / Harvey Bear Ranch CP
Fort Ord NM
Lexington Reservoir CP
Sierra Azul OSP

Months:

Feb.: 1
Mar.: 1
Apr.: 15
May: 3
Jun.: 2

For more details, use advanced search.

Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora