Al Schneider's Rocky Mountains Plant Descriptions

Silky Phacelia
Phacelia sericea
Waterleaf family (Hydrophyllaceae)

The Phacelia hosts some 150 species in North America, with Phacelia one of the easiest to recognize. The plant's fine hairs give it its scientific name, sericea,Latin from the Greek "serikos," meaning "." Many Phacelias are called "Scorpionweed," an allusion to the coiled flower clusters. Thomas Drummond was the first to collect this lovely plant for science; he found it in the late 1820s in the northern Rocky Mountains.


©2014 Steve Sullivan

Description

, silver-hairy , 5-16" tall, with purple flowers clustered in a . Long, slender with and yellow-tipped extend beyond edge of the giving the a fuzzy bottlebrush appearance. are a distinctive light green, cleft, forming a mat with leaves smaller, on shorter stems. Last year's flower stalks may be present.

Field Marks

Tight coils of purple flowers with long ; divided leaves.

© Al Schneider

stamen -- the pollen-producing reproductive organ of a flower; The stamen consists of an anther supported by a filament.

silky -- Covered with fine soft hairs, with a lustrous sheen. Satiny to the touch.

A herb is a plant whose stems die back to the ground in the winter.

corolla -- The name for all the petals of a flower taken together.

terminal -- Located at the end (the tip or the apex).

pinnate -- A compound leaf with two rows of leaflets.

The anther is a pad at the end of the stamen that holds the pollen.

A spike is an unbranched, indeterminate inflorescence in which the flowers are without stalks.

stalk -- The supporting structure of an organ. Examples of stalks are stem, peduncle, petiole, ...

genus -- A subdivision of a botanical Family in which all members have a significant number of similar characteristics.

alternate -- leaves alternate along the main stem and are attached singly.

basal leaves -- a leaf that grows lowest on the stem of a plant.

filament -- The stalk of a stamen. Other very narrow, thread-like structures.

An inflorescence is a group or cluster of flowers arranged on a stem.