Agnorhiza reticulata

Last updated

Agnorhiza reticulata
Wyethia reticulata.jpg
Status TNC G2.svg
Imperiled  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Agnorhiza
Species:
A. reticulata
Binomial name
Agnorhiza reticulata
Synonyms [2]

Wyethia reticulata Greene

Agnorhiza reticulata (syn. Wyethia reticulata), known by the common name El Dorado County mule's ears, is a rare species of flowering plant found only in a small region of north-central California. [3]

Contents

Agnorhiza reticulata grows in the California interior chaparral and woodlands habitats of the Sierra Nevada foothills. [1] It has been found in El Dorado, Sacramento, and Yuba Counties. [4] [3]

The genetic diversity of the populations is probably low because they are often clonal, spreading via vegetative reproduction with rhizomes rather than sexual reproduction by seed. [1] Some populations are also threatened by development of their habitat. [1] [5]

Description

Agnorhiza reticulata is a perennial herb producing a hairy, glandular, sticky-textured stem growing 40 to 70 centimeters tall, at times reaching 1 meter (3 ft.). The leaves have triangular or lance-shaped blades up to 15 centimeters long. [6]

The inflorescence is a usually solitary sunflowerlike flower head with up to 21 yellow ray florets measuring up to 2.5 centimeters long. At the center are yellow disc florets. The flowers are pollinated by native bees. [5] [7]

The fruit is an achene a few millimeters long which usually lacks a pappus.

Related Research Articles

Erigeron lassenianus is a species of flowering plant in the family Asteraceae known by the common name Mount Lassen fleabane.

<i>Erigeron parishii</i> Species of flowering plant

Erigeron parishii is a species of flowering plant in the family Asteraceae known by the common names Parish's daisy and Parish's fleabane.

<i>Agoseris grandiflora</i> Species of flowering plant

Agoseris grandiflora is a North American species of flowering plant in the family Asteraceae known by the common names California dandelion, bigflower agoseris, and grassland agoseris.

Arnica spathulata is a rare North American species of flowering plant in the family Asteraceae, known by the common name Klamath arnica. It is native to the Klamath Mountains of northwestern California and southwestern Oregon. It grows in woodland habitat, almost exclusively on serpentine soils.

<i>Erigeron petrophilus</i> Species of flowering plant

Erigeron petrophilus is a species of flowering plant in the family Asteraceae known by the common names rockloving erigeron or cliff fleabane. It is native to the mountain ranges of California from Siskiyou County south as far as San Luis Obispo County and El Dorado County. It also grows in southwestern Oregon.

<i>Erigeron reductus</i> Species of flowering plant

Erigeron reductus is a species of flowering plant in the family Asteraceae known by the common name lesser California rayless fleabane. It is endemic to California, from Trinity County south as far as Alameda County and El Dorado County.

<span class="mw-page-title-main">Pine Hill Ecological Reserve</span> California nature reserve

Pine Hill Ecological Reserve is a nature reserve of 403 acres (1.63 km2) located due east of Folsom Lake in the Sierra Nevada foothills, in El Dorado County, California. The reserve was established in 1979, and is managed by the Bureau of Land Management.

Eriophyllum jepsonii is a rare North American species of flowering plant in the family Asteraceae known by the common name Jepson's woolly sunflower. It is endemic to California, where it has been found in the Central Coast Ranges and adjacent hills from Contra Costa County to Ventura County.

<i>Rudbeckia californica</i> Species of flowering plant

Rudbeckia californica is a species of flowering plant in the family Asteraceae, known by the common name California coneflower.

<i>Packera layneae</i> Species of flowering plant

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.

<i>Bahiopsis reticulata</i> Species of flowering plant

Bahiopsis reticulata is a species of flowering plant in the family Asteraceae known by the common names netvein goldeneye and Death Valley goldeneye. It is native to the Mojave Desert of California and Nevada, where it grows in several types of dry desert habitat. Many of the populations are inside Death Valley National Park.

<i>Wyethia angustifolia</i> Species of flowering plant

Wyethia angustifolia is a species of flowering plant in the family Asteraceae 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.

<i>Agnorhiza</i> Genus of flowering plants

Agnorhiza is a small genus of flowering plants in the family Asteraceae described as a genus in 1998. Its species had previously been considered members of either Wyethia or Balsamorhiza. The plants are native to California, with the range of one species (A. ovata) extending into northern Mexico. They are perennial herbs with sunflower-like flower heads 1 to 4 centimeters wide.

<i>Agnorhiza bolanderi</i> Species of flowering plant

Agnorhiza bolanderi is a species of flowering plant known by the common name Bolander's mule's ears. It is endemic to California, where it is known only from a narrow section of the Sierra Nevada foothills about 275 kilometers long from Shasta County to Mariposa County. It grows in chaparral and grassland habitat, usually on serpentine soils.

<i>Agnorhiza elata</i> Species of flowering plant

Agnorhiza elata is a species of flowering plants known by the common name Hall's mule's ears. It is endemic to California, where it is known only from a section of the central Sierra Nevada foothills. It occurs primarily in a region stretching from Tuolumne County to Fresno County, but a few isolated populations have been found in Tulare County.

<i>Wyethia glabra</i> Species of flowering plant

Wyethia glabra is a species of flowering plant in the family Asteraceae known by the common name Coast Range mule's ears. It is endemic to California, where it grows in the North and Central Coast Ranges. It is a perennial herb growing from a tough taproot and caudex unit and producing a stem up to 40 centimeters tall. It is hairless to hairy and glandular. The leaves have lance-shaped or oval blades up to 45 centimeters long. The inflorescence is usually a solitary flower head or occasionally a cluster of 2 or more. The head has lance-shaped leaflike phyllaries at the base. It contains up to 21 yellow ray florets each up to 5 centimeters long and many yellow disc florets. The fruit is an achene over a centimeter long, including its pappus.

Agnorhiza invenusta is a species of flowering plant known by the common names Coville's mule's ears and rayless mule's ears. It is found only in California, where it grows in the Sierra Nevada foothills as in Fresno, Tulare, and Kern Counties.

<i>Wyethia longicaulis</i> Species of flowering plant

Wyethia longicaulis is a species of flowering plant in the family Asteraceae known by the common name Humboldt mule's ears. It is endemic to California, where it occurs in the North Coast Ranges and the Klamath Mountains. It grows in mountain and foothill habitat such as grassland and forests. It is a perennial herb growing from a tough taproot and caudex unit and producing a stem up to half a meter tall. It is hairless to hairy and glandular. The leaves have lance-shaped or oblong blades up to 20 centimeters long. They are glandular and have a waxy exudate that dries white. The inflorescence is usually a cluster of 2 to 4 flower heads, each with up to 10 yellow ray florets which may be up to 3 centimeters long. The fruit is an achene about a centimeter long, including its tiny pappus.

<i>Agnorhiza ovata</i> Species of flowering plant

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.

<i>Deinandra fasciculata</i> Species of flowering plant

Deinandra fasciculata, known by the common names clustered tarweed and fascicled spikeweed, is a species of flowering plant in the family Asteraceae native to western North America.

References