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Wildflower Mount Diablo Few-flowered Clover Scientific Name: Trifolium oliganthum Family: Fabaceae Blooms: Apr - May Color: Red-Pink Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants

Wildflower Mount Diablo Poison Oak Invasive Scientific Name: Toxicodendron diversilobum Family: Anacardiaceae (Sumac Family) Blooms: Mar - May Color: White Shrub or vine Native A common plant known for causing itchy skin rash (dermatitis) upon contact. Forms an understory throughout woodlands, frequently in canyon bottoms and abundant in dense shade. Tolerates all exposures and can be found at all elevations from base to summit. Read more Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring

Wildflower Mount Diablo Skunk Bush, Skunkbush Scientific Name: Rhus aromatica Family: Anacardiaceae (Sumac Family) Blooms: Mar - Apr Color: Yellow-Orange Shrub Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring

Wildflower Mount Diablo Yellow Mariposa Lily Scientific Name: Calochortus luteus Family: Liliaceae (Lily Family) Blooms: Mar - May Color: Yellow-Orange Perennial herb Native, endemic to California Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring

Wildflower Mount Diablo Moronel Scientific Name: Lonicera subspicata Family: Caprifoliaceae Blooms: May Color: Yellow-Orange Shrub Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Daniel Fitzgerald Flower detail

Wildflower Mount Diablo Brewer's Western Flax Scientific Name: Hesperolinon breweri Family: Linaceae (Flax Family) Blooms: May - Jun Color: Yellow-Orange Annual herb Native, endemic to California California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere ). This plant is rare in Mount Diablo State Park. See full list Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring

Wildflower Mount Diablo Turkey Mullein Scientific Name: Croton setiger Family: Euphorbiacae (Spurge Family) Blooms: June Color: White Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty

Wildflower Mount Diablo Sticky Cinquefoil Scientific Name: Drymocallis glandulosa var. wrangelliana Family: Rosaceae (Rose Family) Blooms: Apr - May Color: Yellow-Orange Perennial herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Kevin Hintsa

Wildflower Mount Diablo Small headed Clover Scientific Name: Trifolium microcephalum Family: Fabaceae Blooms: Apr-Jun Color: Red-Pink Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants

Wildflower Mount Diablo Clay Mariposa Lily Scientific Name: Calochortus argillosus Family: Liliaceae (Lily Family) Blooms: May - Jul Color: White Perennial herb (bulb) Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring

Wildflower Mount Diablo Bitterroot Scientific Name: Lewisia rediviva var. rediviva Family: Montiaceae (Spring Beauty Family) Blooms: Apr - Jun Color: White Perennial herb Native The scientific name originates from Meriweather Lewis of the Lewis and Clark expedition of 1804. Lewisia is also the state flower of Montana. Found at higher elevations on the mountain, especially in rocky scree. Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Ruth Ann Kishi

Wildflower Mount Diablo Little Willowherb, Chaparral willowherb, Desert willow herb, Minute willowherb, Slender annual fireweed Scientific Name: Epilobium minutum Family: Onagraceae (Evening Primrose Family) Blooms: April - June Color: Red-Pink Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty