Plant Characteristics

A list of specialist words which might be used in field guides ... more.

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D

Deciduous :	All leaves of plant falling in one season, mostly applying to certain tree species. (The term is less often used used for parts tha
Parent Term:	Tree_crown
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Decurrent :	Literally, ?running down or along?: a decurrent leaf base has the base of the lamina v. narrowly wedge-shaped, running along edge o
Parent Term:	Leaf_base
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Decussate :	Of opposite leaves, when the successive pairs are at right angles to each other.
Parent Term:	Leaf_arrangement
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Dehiscent :	(Dry fruits) splitting when ripe to release seeds (see indehiscent; capsule).
Parent Term:	Fruit_type
Child Terms:	Achene Capsule Schizocarp Septicidal Siliqua
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Dendroid :	Tree-shaped, resembling a tree in form but not in size, e.g. dendroid hairs.
Parent Term:	Hairs
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Dentate :	With teeth, but strictly the teeth should be equal sided and pointing directly outwards (see serrate).
Parent Term:	Serrated
Plural:	Teeth
Synonyms:	Tooth
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Denticulate :	Minutely dentate, with small triangular teeth (cut to 1/16 distance to midrib or midvein).
Parent Term:	Serrated
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Descending :	Arching gradually downwards.
Parent Term:	Angles
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Dichasium :	A cyme with two branches from each node.
Parent Term:	Inflorescence_type
Plural:	Dichasia
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Dichotomous :	Branching by forking into two equal branches, as if splitting into half.
Parent Term:	Branching_pattern
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Dicotyledon :	A broad category of plant: those with two seedling Ivs; (all plants in this book apart from the monocots and ferns).
Parent Term:	Plant_types
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Digitate :	Compound leaf with more than three leaflets, all arising from one point at end of petiole (compare palmate).
Parent Term:	Compound_leaf_types
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Digitately Lobed :	(Simple leaf) with lobes diverging like fingers on a hand
Parent Term:	Lobe
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Dilatation tissue :	Tissue in bark marked by broad vertical bands associated with outgrowth of bark.
Parent Term:	Bark
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Dioecious :	Species with male and female flowers on different plants; i.e. with ? and ? plants.
Parent Term:	Gender
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Disc :	A fleshy, usually nectar-secreting ring between whorls of floral parts or on the ovary.
Parent Term:	Flower_part
Plural:	Discs
Synonyms:	Disk
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Disc Disk :	-
Parent Term:	Flower_part

Disc Floret :	-
Parent Term:	Floret
Plural:	Disc florets
Synonyms:	Disc flower
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Disc Floret Disc flowers :	-
Parent Term:	Floret

Discoid :	Orbicular with convex faces.
Parent Term:	Shape__3d
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Discolorous :	Differently coloured (especially lower) side of leaf (compared to upper side).
Parent Term:	Leaf_blade_colour
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Dissected :	Leaves, stipules, petals etc. finely divided into narrow segments. Laciniate is an extreme case of fine dissection.
Parent Term:	Serrated
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Distichous :	Two-ranked; regularly arranged one above the other in two opposite rows, one on each side of the stem.
Parent Term:	Leaf_arrangement
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Divergent :	Of two or more like structures, spreading so that the apices are further apart then their bases.
Parent Term:	Angles
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Divided :	-
Parent Term:	Serrated

Domatia :	Tufts of hairs, small holes or other structures in axils of lateral nerves or finer veins.
Parent Term:	Hairs
Plural:	Domatias
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Doubly Dentate :	Dentate with small teeth on the larger teeth; (also doubly serrate).
Parent Term:	Serrated
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Doubly Serrate :	Serrated with small teeth on the large ones.
Parent Term:	Serrated
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Downy :	Covered with short, weak, soft trichomes, feeling like duck ?down?, or fine insulating feathers.
Parent Term:	Hairs
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Drip Tip :	(With) tip of leaf abuptly long acuminate, the drip tip tip section itself typically <2mm wide and parallel sided for >5mm.
Parent Term:	Apex_of_leaf_blade
Synonyms:	Drip-tipped
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Drip-Tipped :	-
Parent Term:	Apex_of_leaf_blade

Drupaceous :	Plum-like, like a drupe, but technically not one, e.g. with stone(s) each containing more than 1 seed.
Parent Term:	Indehiscent
Synonyms:	Drupe-like

Drupe :	Fruit with a fleshy part surrounding hard, central, 1-seeded 'stone(s)' (e.g. mango, plum). Normally 1-stoned (but sometimes a few)
Parent Term:	Indehiscent
Plural:	Drupes
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Drupe-like :	Plum-like, like a drupe, but technically not one, e.g. with stone(s) each containing more than 1 seed.
Parent Term:	Indehiscent
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