''Jensia rammii'' is a species of flowering plant in the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

known by the common name Ramm's madia. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, where it is limited to the northern slopes of the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

and its foothills. ''Jensia rammii'' is an annual herb with a hairy, glandular, branching stem up to 60 centimeters (2 feet) tall. 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 o ...

produces

flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...

on long peduncles. The head has 5-12 yellow ray florets up to a centimeter (0.4 inches) long with lobed tips. The 16–65 yellow disc florets at the center have black anthers. The fruit is an

achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not ope ...

a few millimeters long.Greene, Edward Lee 1885. Bulletin of the California Academy of Sciences 1(3): 90–91
''Madia rammii''

References

External links

Jepson Manual Treatment, University of CaliforniaUnited States Department of Agriculture Plants ProfileCalphotos Photo gallery, University of California
Madieae Plants described in 1885 Endemic flora of California Flora without expected TNC conservation status {{Madieae-stub