leaves Flashcards

1
Q

acicular

A

needle-shaped

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2
Q

cordate

A

of the shaped of the stylized heart, with the petiole attached between the basal lobes

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3
Q

deltoid

A

the shape of an equilateral triangle

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4
Q

elliptic

A

oval, the ends rounded and widest at the middle

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5
Q

falcate

A

sickle-shaped

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6
Q

hastate

A

more or less arrowhead-shaped, but with the basal lobes divergent

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7
Q

lanceolate

A

lance-shaped, several times longer than wide; the sides curved, with the blade broadest below the middle

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8
Q

linear

A

several times longer than wide; the sides more or less parallel

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9
Q

obcordate

A

as in the cordate leaf, but the petiole attached at the point of the heart

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10
Q

oblanceolate

A

as in the lanceolate leaf, but the petiole attached at the narrow end

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11
Q

oblong

A

about two or three times longer than broad; rectangular with rounded corners

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12
Q

obovate

A

as in ovate, but the petiole attached at the narrow end

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13
Q

orbicular

A

circular or nearly so

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14
Q

oval

A

broadly elliptic, the length less than twice the width

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15
Q

ovate

A

the shape of the longitudinal section through a chicken’s egg, with the petiole attached at the broad end

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16
Q

reniform

A

kidney-shaped or bean-shaped

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17
Q

sagittate

A

arrowhead-shaped

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18
Q

spatulate

A

spatula-shaped

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19
Q

ciliate

A

with fine hairs on the margin

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20
Q

crenate

A

scalloped, the teeth blunt

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21
Q

dentate

A

with coarse angular teeth directed outward at right angles to the margin

22
Q

denticulate

A

finely dentate

23
Q

entire

A

not in any way indented, the margin featureless

24
Q

serrate

A

with coarse saw-like teeth which post forward

25
Q

serrulate

A

finely serrate

26
Q

sinuate

A

wavy in and out, in the plane of the blade

27
Q

acute

A

apex formed by two straight margins meeting at less than 90 degrees

28
Q

acuminate

A

an acute apex whose sides are concave and taper to an extended point

29
Q

aristate

A

an abrupt, hard, bristle-like point (awn)

30
Q

attenuate

A

the apex drawn out into a long gradual taper

31
Q

emarginate

A

with a shallow notch at the apex

32
Q

mucronate

A

with a hard, short abrupt point (mucro)

33
Q

obtuse

A

apex formed by two lines which meet at more than a right angle

34
Q

rounded

A

the apex gently curved

35
Q

truncate

A

the apex appearing chopped off

36
Q

glabrous

A

without hairs

37
Q

glaucous

A

covered with a whitish waxy bloom

38
Q

punctuate

A

dotted with pin-point impressions or translucent dots

39
Q

rugose

A

wrinkled

40
Q

viscid

A

sticky

41
Q

floccose

A

with tufts of soft hairs which rub off easily

42
Q

tomentose

A

densely and softly matted

43
Q

glandular

A

hairs with swollen tips, gland-bearing

44
Q

hispid

A

with long, rigid, bristly hairs

45
Q

hirsute

A

with rough or coarse, more or less erect hairs

46
Q

pilose

A

with sparse, slender, soft hairs

47
Q

puberulent

A

minutely canescent (fine hairs)

48
Q

pubescent

A

downy; the hairs short soft, and erect

49
Q

scabrous

A

rough to the touch because of coarse, stiff, ascending hairs

50
Q

strigose

A

hairs sharp, appressed (close together), rigid, and often swollen at the base

51
Q

villous

A

shaggy; the hairs long, slender, soft, but not matted