|
Hesperolinon
''Hesperolinon'' is a genus in the family Linaceae, whose common genus names are dwarf-flax or western flax, in reference to their distribution along the west coast of North America. There are 13 known species within this genus of wildflowers, most of which are limited to serpentine soil habitats within California, United States.Helen K. Sharsmith, 1961 ''Univ Calif Publ Bot'', 32:235–314 These annual plants are thought to be mostly self-pollinating. Description Stems vary between five and fifty centimeters in length, with thread-like to linear leaves generally alternate: the leaves are typically not planar and not clasping. Cymes are characteristically open and pedicels are somewhat thread-like and ascending. The flower has five sepals, whose margins may be minutely gland-toothed. Five petals are widely spreading between one and twelve millimeters in dimension. These yellow, white or rose colored petals each manifest three minute scales at the inner base. There are five ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Congestum
''Hesperolinon congestum'', or Marin dwarf flax, is an annual herb, which is known to occur only in San Mateo, San Francisco and Marin County, California, United States. This plant occurs chiefly on serpentine soils, especially in dry native bunch grasses, chaparral or other grasslands at elevations less than 200 meters. The flowers are congested at the tips of the dichotomously branching stems. ''H. congestum'' is in flower between April and July. The outlook for this plant depends on survival of only about twenty small colonies, most of which are not actively managed for protection, even though the species is federally and state-listed as threatened. This species is also less commonly known as Marin western flax. Description Stems of this wildflower vary between five and fifteen centimeters in length, with linear leaves manifesting alternately. The leaves are typically not planar and not clasping, and stipule glands are well developed with red exudate. Inflorescences ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Serpentinum
''Hesperolinon serpentinum'' is a rare species of flowering plant in the flax family known by the common name Napa dwarf flax, or Napa western flax. ''Hesperolinon serpentinum'' was not validly published by McCarten although it appears in the Jepson Manual (Hickman, 1993). The species was validly published as ''Hesperolinon sharsmithae'' in 2006 by O'Donnell (Madroño 53:404–408). The species is endemic to northern California, where it is known from fewer than twenty occurrences in four counties surrounding the San Francisco Bay Area. It is a member of chaparral plant communities, generally on serpentine soils. It produces a thin, erect stem up to 30 centimeters tall, with sparse flat, narrow leaves. The inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ... holds sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Disjunctum
''Hesperolinon disjunctum'' is a species of flowering plant in the flax family known by the common name Coast Range dwarf flax. It is endemic to California, where it has a disjunct distribution along the North and Central Coast Ranges. It is a plant of serpentine soils in chaparral habitat. Description This is an annual herb producing an erect stem up to 30 centimeters tall, somewhat thick and tough at the base. The glandular leaves are linear in shape and are alternately arranged along the stem. The inflorescence is a wide open cyme of flowers, each flower with glandular sepals and pink-veined white petals about half a centimeter long. The protruding stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...s are tipped with pink anthers. It flowers from April to July. Referenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Micranthum
''Hesperolinon micranthum'' is a species of flowering plant in the flax family known by the common name smallflower dwarf flax. It is native to the west coast of North America from Oregon to Baja California. It may occur in Nevada. It grows in a number of open habitats, often on serpentine soils. This is a spindly annual herb producing a very thin stem 5 to 20 centimeters in height. Its small, sparse leaves are linear in shape. The tiny flowers have five white or pink-veined white petals each less than four millimeters long and protruding stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...s with white or purple anthers. References External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Breweri
''Hesperolinon breweri'' is a rare species of flowering plant in the flax family known by the common names Brewer's dwarf flax and Brewer's western flax. It is endemic to California, where it is known from three counties in the San Francisco Bay Area. It is found in chaparral ecosystems, often on serpentine soils. This is an annual herb growing erect to a maximum height near centimeters. Its narrow, linear leaves are greenish to purplish in color. It produces dense inflorescences of flowers with glandular sepals and five bright yellow petals. The protruding stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...s hold large orange-yellow anthers. This uncommon California endemic is threatened by development of its habitat but its current status is not known. References Extern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon Adenophyllum
''Hesperolinon adenophyllum'' is a rare species of flowering plant in the flax family known by the common names glandular dwarf flax and glandular western flax. It is endemic to California, where most known occurrences have been recorded in Lake and Mendocino Counties. It is generally found in chaparral ecosystems on serpentine soils. This is an annual herb growing erect to heights between 10 and 50 centimeters. Its narrow, lance-shaped leaves are lined with rows of teeth with large knobby glandular points. The flower has small sepals speckled with glandular hairs and five thin yellow petals. The stamens protrude from the face of the flower and hold large yellow anthers. References External linksJepson Manual Treatment |
Hesperolinon Drymarioides
''Hesperolinon drymarioides'' is a rare species of flowering plant in the flax family known by the common names drymary dwarf flax and drymaria-like western flax; it is named for its resemblance to genus ''Drymaria''. It is endemic to California, where it grows in the central inland North Coast Range. Most of the few known occurrences have been noted in Lake County. It is a plant of serpentine soils in chaparral and woodland ecosystems. This is a small annual herb growing a thin branching brown stem low to the ground or erect to about 20 centimeters in height. Leaves appear in whorls of four on the lower part of the stem and are dark reddish green with plentiful glandular hairs. Its flowers have light pink-veined white petals in a corolla about a centimeter across. Protruding stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |