| Pseudobahia bahiifolia | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Pseudobahia |
| Species: | P. bahiifolia |
| Binomial name | |
| Pseudobahia bahiifolia | |
| Synonyms | |
Monolopia bahiifolia | |
Pseudobahia bahiifolia is a rare species of flowering plant in the family Asteraceae known by the common name Hartweg's golden sunburst. [2]
Pseudobahia bahiifolia is endemic to California, where it is known from a few small occurrences along the eastern side of the Central Valley and the lower central Sierra Nevada foothills. It grows in grassland and oak woodland habitat. It prefers heavy clay soils, particularly along the tops of Mima mounds. [1] The plant's native range is on land that has been heavily altered by agriculture, leaving little habitat intact, and the plant became a federally listed endangered species of the United States in 1997. [1] [3]
This species, Pseudobahia bahiifolia, is an annual herb growing 5 to 20 centimeters tall. It has a thin coating of woolly hairs. The linear or lance-shaped leaves are up to 2.5 centimeters long and often have three small lobes near the tips.
The inflorescence is a solitary sunflowerlike flower head lined with three to eight phyllaries. There is one golden ray floret per phyllary, up to a centimeter in length and sometimes faintly toothed at the tip. At the center of the head are yellow disc florets. The blooming period is 3 to 4 weeks long, occurring in March and April. [1] The fruit is an achene about 2 millimeters long.
The main threat to its remaining populations is destruction of its habitat for residential development. [1] About 90% of all individuals of this species occur in two main locations, one of which was scheduled to be cleared for housing construction when the plant was listed as an endangered species. [1]
Layia munzii is a rare species of flowering plant in the daisy family known by the common name Munz's tidytips, or Munz's layia.
Lessingia germanorum is a rare species of flowering plant in the daisy family known by the common name San Francisco lessingia. It is endemic to California, where it is known from four populations in the Presidio of San Francisco and one occurrence on San Bruno Mountain south of San Francisco. It is a state and federally listed endangered species. The already rare plant is endangered by many processes, including invasive species, development, sand mining, off-road vehicles and bulldozers, habitat fragmentation, trampling, and pollution, as well as stochastic events.
Madia radiata is a species of flowering plant in the aster family known by the common names golden madia and showy madia. It is endemic to California, where it is known mostly from the Central Coast Ranges and adjacent edges of the San Francisco Bay Area and Central Valley.
Malacothrix indecora is a rare species of flowering plant in the aster family known by the common name Santa Cruz Island desertdandelion. It is endemic to the Channel Islands of California, where it is known from only a few populations on three of the eight islands. As of 2000, there were three occurrences on San Miguel Island, two on Santa Rosa Island, and one on Santa Cruz Island. It grows on the bluffs and rocky coastal grasslands of the islands. Like many Channel Islands endemics, this plant is naturally limited in distribution and has been threatened by the presence of destructive introduced mammals, in this case, feral pigs. The plant became a federally listed endangered species in 1997. This is a mat-forming annual herb which spreads low to the ground no more than about 10 centimeters high. The fleshy leaves have dull lobes. The inflorescence is an array of flower heads lined with oval-shaped phyllaries. The ray florets are under a centimeter long and yellow in color.
Pseudobahia is a genus of California plants in the tribe Madieae within the family Asteraceae. These plants are known generally as sunbursts.
Pseudobahia heermannii is a species of flowering plant in the family Asteraceae known by the common names foothill sunburst and brittlestem.
Pseudobahia peirsonii is a rare species of flowering plant in the family Asteraceae known by the common names San Joaquin adobe sunburst and Tulare pseudobahia. It is endemic to California, where it is known from a few mostly small occurrences along the southeastern side of the San Joaquin Valley where it rises into the Sierra Nevada foothills. It grows in grassland and oak woodland habitat. It prefers heavy adobe clay soils. The plant became a federally listed threatened of the United States in 1997.
Pyrrocoma uniflora is a species of flowering plant in the aster family known by the common name plantain goldenweed. It is native to western North America from central Canada to California to Colorado, where it grows in several types of habitat, including forest and meadows with alkali soils, such as those near hot springs. It is a perennial herb growing up to 40 centimeters tall, the stems reddish and usually with a thin to thick coating of woolly fibers. The lance-shaped, toothed leaves are usually woolly, the largest near the base of the plant reaching up to 12 centimeters in length. The inflorescence is a single flower head or a cluster of a few heads, each lined with woolly phyllaries. The head contains yellow disc and ray florets. The fruit is an achene which may be over a centimeter long including its long pappus.
Packera bernardina is a rare species of flowering plant in the aster family known by the common name San Bernardino ragwort.
Packera bolanderi is a species of flowering plant in the aster family known by the common names Bolander's ragwort and seacoast ragwort. It is native to the west coast of the United States from Washington to northern California, where it grows in wet coastal forests and woodlands. There are two varieties of the species which differ slightly in morphology and habitat occupied; these varieties have been considered separate species by some authors. The var. bolanderi has thicker leaves, occurs farther south, and occupies more open types of habitat, than does var. harfordii. This plant in general is a perennial herb producing one to three stems up to half a meter tall. The basal leaves have blades up to 12 centimeters long which are divided into several lobes and borne on long, thin petioles. Leaves growing farther up the stem are smaller and have more lobes on their blades. The inflorescence contains several flower heads, each lined with dark green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 yellow ray florets each over a centimeter long. The fruit is an achene tipped with a pappus of bristles.
Packera cana is a species of flowering plant in the aster family known by the common name woolly groundsel. It is native to western and central North America, where it can be found in a wide array of habitat types at all elevations from grassland to the alpine climates of mountain peaks.
Packera ganderi is a rare species of flowering plant in the aster family known by the common name Gander's ragwort. It is endemic to southern California, where it is known from a few occurrences in San Diego and Riverside Counties.
Packera layneae, known by the common name Layne's ragwort and Layne's butterweed, is a rare species of flowering plant in the aster family.
Wyethia angustifolia is a species of flowering plant in the aster family known by the common names California compassplant and narrowleaf mule's ears. It is native to the west coast of the United States from Washington to California, where it grows in grassland, meadows, and other open habitat. It is a perennial herb growing from a tough taproot and caudex unit and producing a stem 30 to 90 centimeters tall. The leaves have lance-shaped blades up to 50 centimeters tall. The inflorescence produces one or more large sunflower-like flower heads at the top of the hairy stem. The head has narrow, hairy phyllaries at the base. It contains up to 21 yellow ray florets each up to 4.5 centimeters long and many yellow disc florets. The fruit is an achene which may be nearly 2 centimeters long including its pappus.
Agnorhiza ovata is a species of flowering plant known by the common name southern mule's ears. It is native to the mountains and foothills of southern California and Baja California, occurring the Coast Ranges and Sierra Nevada foothills in Tulare, Kern, Ventura, Los Angeles, Orange, Riverside, and San Diego counties in California, with additional populations in the Peninsular Ranges south of the international border.
Deinandra conjugens is a rare species of flowering plant in the family Asteraceae known by the common names Otay tarplant and Otay tarweed. It is native to a small section of far northern Baja California in Mexico, its range extending north into San Diego County, California, in the United States. One isolated population has been reported from the hills east of Cayucos in San Luis Obispo County.
Hymenoxys texana is a rare species of flowering plant in the aster family known by the common names prairie dawn, Texas prairie dawn-flower, and Texas bitterweed. It is endemic to Texas, where it is known only from the general vicinity of Houston. It is threatened by the loss of its habitat. It is a federally listed endangered species of the United States.
Thymophylla tephroleuca is a rare species of flowering plant known by the common names ashy pricklyleaf and ashy dogweed. It is endemic to Texas in the United States, where it occurs in two counties near the Mexican border. It became rare due to the destruction and degradation of its habitat. It is a federally listed endangered species of the United States.
Xanthisma coloradoense is a species of flowering plant in the aster family known by the common name Colorado tansyaster. It is native to Colorado and Wyoming in the United States.
Grindelia fraxinipratensis, common name Ash Meadows gumweed, is a North American species of flowering plants in the daisy family. It is native to the southwestern United States, in Mojave Desert regions in Nye County in Nevada and Inyo County in California. Some of the Nevada populations lie inside the Nevada Test Site of the United States Atomic Energy Commission
