Al Schneider's Rocky Mountains Plant Descriptions

Prairie Pasqueflower
Pulsatilla nuttalliana
Buttercup family (Ranunculaceae)

Pasqueflower (Pulsatilla) is among the first wildflowers to bloom. Flowers emerge before the finely cut leaves and often last for many days as the plant develops. Plants often occur in large colonies. Your early spring search for Pulsatilla will probably get you wet and mucky feet, for Pulsatilla is found in the moist of snow melt. Its early blooming time, usually upright flowers, and deeply cut leaves should help distinguish it from Sugarbowls. Its crocus-like flowers give rise to one of its common names, "Prairie Crocus." Late spring and summer visitors will find no flowers, just feathery plumes. All parts of the plant are poisonous and handling it can cause skin irritation.

"Pulsatilla" is from the Latin for "pulsing" or "beating," perhaps alluding to the blood of the sacrificial lambs of Passover. "Pasque" is probably from the Hebrew "paschal," "relating to Passover." "Patens" is Latin for "spreading, open" and may refer to the plant's habit of spreading over large areas and/or to the widely spreading petals or seed head.


©2009 Matt Lavin

Description

-hairy , 12-16" tall, with a cup-shaped purple flower, 1-2" wide. Flower comprised of 5-7 , numerous yellow inside a cup and a whorl of 3 below flower. Leaves are , , with divided into many narrow segments. are forming fluffy heads with long feathery .

Field Marks

Showy, early blooming purple cup-like flower; white plumed seedhead.

© 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.

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

A perennial plant lives and blooms for many years.

achene -- a type of simple dry fruit produced by many species of flowering plants. For example, a rose hip holds a few achenes.

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

Bracts are modified leaves associated with a flower.

Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom.

style -- This is a long and thread-like structure that connects the stigma with the ovary. A flower may have a single style, or several of them.

basal -- at the base, situated or attached at the base.

fruit -- any seed-bearing structure in flowering plants. It is formed from the ovary after flowering.

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

blade -- Just the flat part of a leaf. Not the stem.