Word of the Week: Lenticel
Lenticel: A pore in the stem of a woody plant, showing as a raised spot that may be filled with a powdery substance. The pore permits…
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Word of the Week: Marcescent
Marcescent (mar-ses-ent): of parts of certain plants, remaining attached to the plant when withered.* Many oak (Quercus spp.) and beech (Fagus spp.) trees have marcescent leaves…
Word of the Week: Pectinate
Pectinate: Arranged like the teeth of a comb; usually two-sided with respect to leaves.* Fir trees (Abies sp.) often show pectinate arrangement of their needles. *Eckenwalder,…
Word of the Week: Equitant
Equitant: Of leaves, overlapping or straddling in two ranks, as the leaves of Iris.* This Phormium (New Zealand Flax plant) in the library shows equitant leaf…
Word of the Week: Bract
Bract: A leaflike organ subtending an inflorescence. Bracts are sometimes brightly coloured and petal-like, as in poinsettia (Eurphorbia pulcherrima)* Poinsettias are grown for their bright red…
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Word of the Week: Acerose
Acerose: Needle-shaped, as the leaves of pine or spruce.* *Harris, J.G., Harris, M.W. (2001). Plant identification terminology: An illustrated glossary (2nd ed.). Spring Lake: Spring…
Word of the Week: Glabrous
Glabrous: Smooth; lacking hairs.* The leaves of this holly (Ilex) are glossy because they are smooth and hairless. *Allaby, M. (2006). A dictionary of plant…
Word of the Week: Fascicle
Fascicle: Bundle or tuft, usually bound at the base by a tight clustering of thin scales; needles of pines, uniquely among conifers, are arranged in fascicles….
Word of the Week: Dehiscent
Dehiscent: (De-his-cent) Bursting or splitting open at maturity. Usually used of a fruit that bursts open to release its seeds (e.g. pea pod).* The pods of…