common madia

Madia elegans

Member of tarweeds (genus Madia)
tarweeds and allies (tribe Madieae)
yellow daisies
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
yellow in flowering plants

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• stem 6–250 cm, proximally soft- to coarse-hairy, distally glandular-hairy
• leaf 3–20 cm, 2–10 mm wide, lanceolate to linear
• heads in open, flat-topped clusters
• involucre 4.5–12 mm, ± coarse- or soft-hairy, generally also glandular-hairy
• phyllary tips erect or reflexed, flat
• phyllaries extend partway up petal (example)
• 25–80 disk flowers, staminate
• 5–22 ray flowers, 4–20 mm, relatively narrow petals, bright yellow, often maroon at base
• scattered, especially south of the bay

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Chris’s observations: 21 (17 are research grade)

Locations:

• Edgewood Park & Natural Preserve: 4
• Sanborn CP: 4
• Russian Ridge OSP: 3
• Coal Creek OSP: 2
• Los Trancos OSP: 2
• Skyline Ridge OSP: 2
• Castle Rock SP
• Dimond Canyon Trail, Oakland
• Garrapata SP
• Long Ridge OSP

Months:

• May: 1
• Jun.: 3
• Jul.: 5
• Aug.: 1
• Sep.: 5
• Oct.: 4
• Nov.: 2

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Taxon info: iNaturalist – Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora