Al Schneider's Rocky Mountains Plant Descriptions

Engelmann's Aster
Doellingeria engelmannii
Aster family (Asteraceae)

Engelmann's Aster is tall with an open, airy structure. It is found in open Aspen woods and conifer stands. Flowers are in a branched arrangement at top of the plant, often appear ragged. The Aster , once very large, was recently found to include plants of significantly different characteristics. There are now only two species in the Aster in the United States; the other former Aster, members are in several other : Doellingeria, Dieteria, Symphyotrichum, Oreostemma, Eurybia, etc. "Doellingeria" honors Ignatz Döllinger, a German physician, anatomist, and physiologist. George Engelmann was one of the most important botanists of the 19th century. He mentored many other botanists, described hundreds of new species, and was the founding botanist of the Missouri Botanical Garden.


©2010 Craig Althen, downloaded from the
University of Washington Burke Museum

Description

Tall , 1.5-5'. Flowers in loose clusters at top of stems, 8-13 white surrounding a yellow . often becoming raggedy and pink as they age. overlapping, red to purple-tinged, parchment-like, with prominent mid-vein. , to , net-veined, stalkless with mostly margins.

Field Marks

White to pink flowering composite with yellow centers on tall stems, in open woods.

© Al Schneider

ray flowers -- The outer petals of a sunflower or daisy are ray flowers.

An entire leaf has smooth edges. Not toothed or lobed.

A perennial plant lives and blooms for many years.

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

ray flowers -- The outer petals of a sunflower or daisy are ray flowers.

Bracts are modified leaves associated with a flower.

Involucre is the name given to the circle or spiral collection of bracts around a flower-cluster.

lanceolate -- Lance-shaped. Long, wider in the middle.

elliptic -- Oval, with no point or a very short point.

disc flowers are those in the center of a sunflower or daisy. Not a ray flower.

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

leaves alternate along the main stem and are attached singly.