noun
definition
Waste coal, used as a poor quality fuel; slack.
definition
Anthracite, especially when found in small masses
noun
definition
The stem of a plant, especially of grass or sedge
Examples of culms in a Sentence
The culms are purple-black, very slender and round.
Its culms and leaves afford excellent fodder for cattle; and the grain, of which the yield in favourable situations is upwards of a hundredfold, is used for the same purposes as maize, rice, corn and other cereals.
After ripening of the seed, the leafless flowering culms always die down.
In some bamboos they are very numerous from the lower nodes of the erect culms, and pass downwards to the soil, whilst those from the upper nodes shrivel up and form circles of spiny fibres.
A, B, C, D, successive series of axes, the last bearing aerial culms. Much reduced.
The aerial leaf-bearing branches (culms) are a characteristic feature of grasses.
The function of the nodes is to raise again culms which have become bent down; they are composed of highly turgescent tissue, the cells of which elongate on the side next the earth when the culm is placed in a horizontal or oblique position, and thus raise the culm again to an erect position.
The exterior of the culms is more or less concealed by the leaf-sheaths; it is usually smooth and often highly polished, the epidermal cells containing an amount of silica sufficient to leave after burning a distinct skeleton of their structure.
Less absolute characters, but generally trustworthy and more easily observed, are the feathery stigmas, the always distichous arrangement of the glumes, the usual absence of more general bracts in the inflorescence, the split leaf-sheaths, and the hollow, cylindrical, jointed culms - some .or all of which are wanting in all Cyperaceae.
Grows vigorously in Britain, with straight culms that can change to a dull yellow green with age; and glossy green leaves.
A vigorous and invasive bamboo, with straight erect green culms that rise from the ground well spaced.
They are actually giant grasses but differ by having woody stems or culms and a unique life cycle.
The slender new culms spring gracefully from the carpet of arching foliage.
The culms are brown when ripe; the leaf-sheaths are hairy, and the petiole of the leaf is yellow.
At Shrubland the culms of plants imported seven years ago are 19 feet 5 inches high and 4 1/4 inches in circumference.
The root-stock is very active, the plant being a great runner, while many of the culms come almost horizontally out of the ground, giving the plant a very wide spread.