''Tauschia glauca'' is a species of flowering plant in the carrot family known by the common name glaucous umbrellawort, or glaucous tauschia. It is native to the forests of

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

and northern

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 can often be found on

serpentine soil Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...

s. It is a perennial herb growing 20 to 40 centimeters tall. The leaves have blades which are divided into three-lobed leaflets and borne on long, thin petioles. 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 ...

is a compound

umbel In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs. The word was coined in botanical usage in the 1590s, from Latin ''umbella'' "p ...

of yellow flowers with up to 12 unequal rays measuring up to 6 centimeters long each. The fruit is rounded, ribbed, and only 2 or 3 millimeters long.

References

External links

Jepson Manual TreatmentPhoto gallery
Apioideae Flora of Oregon Flora of California Flora without expected TNC conservation status {{Apiaceae-stub