oblanceolate -- top wider than bottom

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.

subalpine -- Just below the timberline.

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

Like the teeth on a saw, leaves and other surfaces can have toothed edges.

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

Bracts are modified leaves associated with a flower.

Deciduous plants are those that lose all of their leaves for part of the year.

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

sessile -- attached without a stalk. For example, a leaf that clasps the stalk. A petiolate leaf has a stalk.

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

Cut deeply and (usually) unevenly (a condition intermediate between toothed and lobed).

petiole -- the stalk of a leaf.

pappus -- Small scales, bristles or hairs at the top of the seed in Asteraceae. For example, dandelion parachutes. Plural: pappi.

pinnately lobed -- Having lobes pinnately arranged on the central axis.

glabrous -- smooth, glossy, having no bristles or hair-like structures. Bald.

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