Monolopia congdonii | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Monolopia |
Species: | M. congdonii |
Binomial name | |
Monolopia congdonii (A.Gray) B.G.Baldwin | |
Synonyms | |
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Monolopia congdonii (formerly Lembertia congdonii) is a rare species of flowering plant in the family Asteraceae known by the common name San Joaquin woollythread. [1] It is endemic to California, where it is known only from the southern San Joaquin Valley and one area in nearby Santa Barbara County. It is a federally listed endangered species.
This is a small annual herb with a trailing or somewhat upright stem coated thinly in woolly fibers. The leaves are up to about 4 centimeters long and have wavy edges. The inflorescences at the end of stem branches bear small hemispheric flower heads. Each head is wrapped in phyllaries with black glandular hairs and has a center of glandular yellow disc florets. There are also yellow ray florets but they are so small they are nearly invisible. Each is about half a millimeter long and has a minutely lobed tip.
Eatonella is a North American genus of plants in the family Asteraceae containing the single known species Eatonella nivea, which is called by the common name white false tickhead. This small annual is native to the western United States, particularly the Great Basin, where it grows in sandy soils. It has been found in Washington, Oregon, Idaho, Nevada, and eastern California.
Isocoma arguta is a rare species of flowering plant in the family Asteraceae known by the common name Carquinez goldenbush. It has been found only in Solano and Contra Costa Counties in California, where it grows in the Sacramento-San Joaquin River Delta. It is a resident of Suisun Marsh. It thrives on alkali flats and other mineral-rich soils.
Lasthenia coronaria is a species of flowering plant in the family Asteraceae known by the common name royal goldfields. It is native to California and Baja California, including Guadalupe Island.
Layia heterotricha is a species of flowering plant in the family Asteraceae known by the common name pale yellow tidytips, or pale yellow layia.
Layia leucopappa is a rare species of flowering plant in the family Asteraceae known by the common name Comanche Point tidytips, or Comanche Point layia.
Layia munzii is a rare species of flowering plant in the family Asteraceae known by the common name Munz's tidytips, or Munz's layia.
Layia pentachaeta is a species of flowering plant in the family Asteraceae known by the common name Sierra tidytips, or Sierra layia.
Layia septentrionalis is an uncommon species of flowering plant in the family Asteraceae known by the common name Colusa tidytips, or Colusa layia.
Eriophyllum congdonii, known by the common name Congdon's woolly sunflower, is a rare California species of flowering plant in the family Asteraceae.
Lessingia tenuis is a species of flowering plant in the family Asteraceae known by the common name spring lessingia. It is endemic to California, where it is known from the San Francisco Bay Area to Ventura County. It grows on the slopes of the California Coast Ranges in common local habitat such as chaparral.
Madia anomala is a species of flowering plant in the family Asteraceae known by the common name plumpseeded madia. It is endemic to northern California, where it can be found on hillsides in the San Francisco Bay Area and adjacent mountains and valleys.
Monolopia gracilens is a species of flowering plant in the family Asteraceae known by the common name woodland monolopia. It is endemic to California, where it is known from the mountains of the San Francisco Bay Area and ranges just to the south. It grows in grassland, chaparral, woodland, and other habitat, often on serpentine soils. It is an annual herb producing a slender, branching stem up to about 80 centimeters tall. It is usually somewhat woolly in texture. The inflorescences at the ends of stem branches bear small hemispheric flower heads. The golden ray florets are up to a centimeter long and surround a center of many disc florets. The fruit is an achene about 2 millimeters long.
Monolopia lanceolata, the hillside daisy or common monolopia, is a species of flowering plant in the family Asteraceae. It is endemic to the southern half of California, where it grows in many types of habitat, including coastal and valley grassland, chaparral, woodland, and desert.
Monolopia stricta is a species of flowering plant in the family Asteraceae known by the common name Crum's monolopia. It is endemic to central California, where it grows in the Central Valley and its flanking mountain ranges and foothills. It open grasslands and chaparral, often in clay soils. It is an annual herb producing a slender, sometimes branching stem up to about 80 centimeters tall. It is usually somewhat woolly in texture. The inflorescences at the ends of stem branches bear small hemispheric flower heads. The golden ray florets are usually about 1 to 2 centimeters long, but specimens from the western San Joaquin Valley have smaller florets.
Perityle inyoensis, known by the common names Inyo rockdaisy and Inyo laphamia, is a rare species of flowering plant in the aster family.
Pseudobahia bahiifolia is a rare species of flowering plant in the family Asteraceae known by the common name Hartweg's golden sunburst.
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.
Arnica dealbata is a species of Californian plants in the tarweed tribe within the aster family
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.
Erigeron maguirei is a species of flowering plant in the family Asteraceae known by the common names Maguire daisy and Maguire's fleabane. It is endemic to Utah in the United States. It is a perennial herb growing up to 28 centimetres tall. It grows from a taproot and a branching caudex. The stems are densely hairy. The inflorescence holds one to five flower heads each with several hairy, glandular phyllaries. The head has up to 20 white, pink-tinged, or pink ray florets 0.6 to 0.8 centimeters long, and many yellow disc florets at the center.