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- Western Marsh Cudweed, Lowland Cudweed Gnaphalium palustre
Wildflower Mount Diablo Western Marsh Cudweed, Lowland Cudweed Scientific Name: Gnaphalium palustre Family: Asteraceae (Sunflower Family) Blooms: May-Sep Color: White Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Daniel Fitzgerald
- California Red Legged Frog
California Red Legged Frog by Michael Marchiano April 1, 1998 Michael Marchiano The Calaveras Jumping Frog is a story written by Mark Twain in the 19th century. Contrary to popular belief, the frog in that story was NOT an American Bullfrog but rather California’s largest native, the California Red Legged Frog. The Bull frog (a non-native species) was not introduced to California until the turn of the 20th Century. The Red legged frog, is a species in decline at this time due to habitat destruction (75 % of its historical range altered), fragmentation of its environment, water pollution, pesticides, mining, fertilizers, and the introduction of the bullfrog which eats red legged frogs and tadpoles as well as its food sources. The Red legged frog can grow up to five plus inches (half the size of a bullfrog) and lives up to 8-10 years. The frogs are reddish brown, olive, or gray with black spots. The legs have a dark banding and a dark mask like steak runs from the shoulder to the front of the upper jaw. Normally found near water it will often sit on the bank blending in to its surroundings. It will use its powerful hind legs to leap into the water when threatened or attacked by a predator.It takes two to three years to reach breeding age. Breeding takes place from December to March in seasonal ponds, streams, stock pools, and reservoirs. The female can lay up to 2000 eggs but only about one percent will metamorphosis into frogs. Tadpoles mature into frogs in three to seven months, often depending on the availability of water. Water sources with shore line growth of willows or cattails are ideal breeding locations, providing hiding place. In drought years many ponds that start out with breeding populations will dry up before metamorphosis is completed. Although a riparian frog, it is capable of traveling several miles overland in rainy weather. During dry spells it often seeks refuge in leaf litter, animal burrows (especially ground squirrels and gophers) and under fallen trees. They must stay cool or wet enough so as not to dry out. Predators consist of the afore mention introduced American bullfrog, cats, garter snakes, raccoons, foxes, coyotes, egrets, bass, and introduced mosquito fish eat their eggs and newly hatched larva. Their food consists primarily of insects and other invertebrates but they have been known to eat tree frogs and small mice when available. This very attractive amphibian is now protected under both State and federal law as a threatened species. Several populations of red legged frogs breed in Mount Diablo State Park but with our current drought situation many of their breeding sites are drying up before the frogs reach maturity thus causing a decline in their population. by Michael Marchiano by Michael Marchiano BACK TO LIST
- Barn Owl
Barn Owl Owls and Nightjars Barn Owl Tyto alba All Year Owls and Nightjars Daniel Fitzgerald The white heart-shaped face and dark eyes are distinctive. It has no ear tufts and has an unstreaked light colored underparts.
- Yellow Clustered Broomrape Aphyllon fasciculatum
Wildflower Mount Diablo Yellow Clustered Broomrape Scientific Name: Aphyllon fasciculatum Family: Orobanchaceae (Broomrape Family) Blooms: Mar - Jun Color: Yellow-Orange Perennial herb (parasitic) Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring
- Creeping Wood Sorrel, Yellow Sorrel Oxalis corniculata
Wildflower Mount Diablo Creeping Wood Sorrel, Yellow Sorrel Scientific Name: Oxalis corniculata Family: Oxalidaceae Blooms: Mar - May Color: Yellow-Orange Perennial herb Introduced Non-native; smaller flower than Sourgrass Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Hema Shah
- Western Lupine Lupinus formosus
Wildflower Mount Diablo Western Lupine Scientific Name: Lupinus formosus Family: Fabaceae (Legume Family) Blooms: May Color: Blue-Purple Perennial herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Daniel Fitzgerald
- Big Flower Agoseris Agoseris grandiflora
Wildflower Mount Diablo Big Flower Agoseris Scientific Name: Agoseris grandiflora Family: Asteraceae (Sunflower Family) Blooms: Mar-May Color: Yellow-Orange Perennial herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty
- Hammond's Flycatcher
Hammond's Flycatcher Flycatchers Hammond's Flycatcher Empidonax hammondii Migrating Flycatchers Daniel Fitzgerald All Empidonax Flycatchers in our area have light eye-rings and two pale wing bars. Distinguishing features are subtle and include size, shape and coloring of the bill. This species is less yellowish than the Pacific-slope Flycatcher with a shorter, thinner, darker bill and a more tear drop shaped eye ring.
- Two-tailed Swallowtail
Two-tailed Swallowtail Papilio multicaudatus Papilionidae Swallowtails Flies March to September Host Plant Choke Cherry, Ash, Hop Tree Nectar Plant California buckeye, Bull thistle, Cobweb thistle Bill Kareiva Michael Woodring Underwing
- Dense False Gilia Allophyllum gilioides ssp. gilioides (4-8 flowers) ssp. violaceum (2-3 flowers)
Wildflower Mount Diablo Dense False Gilia Scientific Name: Allophyllum gilioides ssp. gilioides (4-8 flowers) ssp. violaceum (2-3 flowers) Family: Polemoniaceae (Phlox Familiy) Blooms: Apr - May Color: Blue-Purple Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty
- Northern Flicker
Northern Flicker Kingfishers and Woodpeckers Northern Flicker Colaptes auratus All Year Kingfishers and Woodpeckers Daniel Fitzgerald Daniel Fitzgerald You can find this species in woodlands. Brown back with black barring, white rump (easily visible in flight), spotted underparts, and red-colored underwings identify this species. Moustache on the side of male's face is red. Unlike other woodpeckers, often seen feeding on the ground. Nests in cavities in trees, wooden posts, or utility poles. Eats insects, especially ants and beetles; fruits and seeds.
- Leanira Checkerspot
Leanira Checkerspot Chlosyne leanira Nymphalidae Brushfoots Flies May to June Host Plant Indian Paintbrush Nectar Plant Narrow-leaved goldenbush Daniel Fitzgerald Daniel Fitzgerald Underwing













