node -- The point at which there is attached growth, as in the place where each leaf is attached.

Axillary bud growing from the armpit of the plant.

oblanceolate -- top wider than bottom

linear -- Long and very narrow like a blade of grass.

cauline leaves -- leaves growing on a stem and especially on the upper part.

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

An annual plant is a plant that completes its life cycle, from germination to the production of seed, within one year, and then dies.

reflexed -- bent sharply back or down.

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

pedicel -- The stem of a single flower.

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

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

tepal -- like a flower petal. Tepal is used, instead of petal, when it is not easy to tell the sepals from the petals.

perianth -- the non-reproductive part of the flower such as petals and sepals.

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

oblong -- Having an elongated form with somewhat parallel sides. Rectangular.