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Roots: A

a- (an-)

without, lacking (anacanthus = spineless; amorpha = without a definite form; Arachis = without a rachis, the peanut genus / apetalus = without petals / aphyllus = without leaves / apterus = without a wing)

abr-

delicate (Abrophyllum = delicate leaved)

acanth-

referring to a thorn, spines (Acanthus) (acanthoides = Acanthus-like / chrysanthicum = golden-spined)

-ace(...)

partaking of (rosaceus / rosaceum = rosy)

acaul-

stemless (caul = stem) (acaulis)

acephal-

headless, without a head (ceph = head) (acephalus)

acerb-

harsh, bitter, stinging (acerbifolia)

acer-

referring to the genus, Acer, the ancient Latin name of the maple tree (aceroides = Maple-like)

aceros-

needle-like (acerosus)

acet-

referring to acid (acetophylla = acid + leaf)

acicul-

referring to a needle (acicularis = needle-like)

acin-

referring to a saber (shape) (acinitus / acinaceus)

acri-

acrid, sharp (acris / acrifolia = sharp-leaved)

acro-

referring to the top of an entity, height (Acrocomia = hair at the top, a palm genus with pinnate leaves)

actin-

referring to a ray (Actinidia, the Kiwi Fruit; cut one across and see the rayed arrangement of the carpels (ovaries)) (actinophylla = Rayed leaves)

aculeat-

sting, prickle (aculeatus)

acuminat-

pointed, tapering (acuminatus)

acut-

acute, sharp (acutissima = very pointed / acutangulatus = acute + angle / acutifidus = acutely cut / acutifolius = sharp + leaf / acutus)

ad-

to, on, onto (adnatum = joined to / adpressus = pressed against)

adeno-

referring to a gland (Adenophora = gland-bearing) (adenophylla = glandular leaf)

adnat-

joined (adnatus)

adven-

adventive (advenuus)

aequi- / equi-

equal (aequinoctialis = equinox, )

aer-

referring to the air (aeranthos = air flower)

aethiopi-

referring to Ethiopia - or Africa in general (aethiopium)

aestiv-

referring to summer (aestivus)

affin-

related (affinis / affine)

agerat-

referring to the genus Ageratum (ageratifolia = Ageratum-like leaves)

aggreg-

clustered, aggregated (aggregatus)

agr-

referring to fields or farms (agrarius / agrestis)

alat-

winged or wing-like (alatus)

alb-

white (albiflorens = white-flowered / albidum / albomaculatum = white-spotted / albicans / albicaulis = white-stemmed)

alli-

referring to the genus Allium which contains the onion, garlic, leeks, etc. (alliacea)

alpestr-

alpine (alpestris)

alpin-

referring to alpine regions (alpinus)

altai-

Siberian (altaicus)

altern-

alternate (alternifolia)

alt-

referring to height (altus / altissimus = very tall)

amabil-

lovely (amabilis)

amar-

bitter (amara)

amethysti-

violet-colored (amethysticus)

amoen-

charming, lovely (amoena)

ampel-

referring to a vine (Ampelopsis = like a vine)

amphi-

both, two (amphibius)

amphor-

referring to an urn, a pitcher (amphoricaulis = stem shaped like a pitcher)

amplexi-

clasping (amplexicaulis = clasping the stem)

ampl-

ample, large (amplissimus = very large)

ampul-

referring to a flask (shape) (ampullacea)

amurensis

hailing from Siberia

amygdal-

almond-like (amygdalinus)

anatol-

referring to Asia Minor (anatoliensis)

anceps

two-edged

andi-

referring to the Andes (andicola / andinus)

andr-

referring to the male part, usually the anthers (androgynus = male + female parts, indicating that both male and female flowers are found on the plant)

anemo-

referring to wind (Anemone = wind flower)

angli-

English (anglicum)

angui-

referring to a snake (shape) (anguinus)

angul-

referring to an angle (angularis / angulatus / angulosus)

angust-

narrow (angustus / angustifolia = narrow leaved)

anis-

unequal (Anisacanthus = unequal thorns)

annu-

annual (annuus)

annul-

ringed, annular (annularis / annulatus)

anomal-

anomalous, unusual, abnormal (anomalus)

anth-

referring to a male part (the anther), - a flower (Anthurium = flower + tail)

anti-

against (Antiacantha = against the spine - a bromeliad)

antill-

referring to the West Indies, Antilles (antillaris)

antipod-

referring to the Antipodes or the polar regions (antipodus)

antiqu-

ancient (antiquorus / antiquus)

apenn-

referring to the Apennines Mts. (Italy) (apenninus)

apert-

open, uncovered, bare (apertus)

apiculat-

with a point (apiculatus)

appendic-

referring to an appendage (appendiculatus)

applanatum

flattened

applicatus

joined, attached

aqu-

referring to water (habitat) (aquatica / aquatilis / aqueus)

aquil-

eagle-like (aquilegia / aquilinus)

arab-

referring to Arabia (arabicus)

arachn- / aran-

referring to spiders (araneosa / arachnoides = like a spider)

arbor-

referring to trees (arborescens / arboricola / arborea)

arbus-

referring to a tree (arbusculus)

archont-

majestic, noble (Archontophoenix = majestic (date) palm)

arct-

referring to a bear (Arctotis = bear's ear)

arcuat-

referring to a bow (shape) (arcuatus)

arec-

referring to the genus Areca (palms) which, itself comes from a Malaysian word meaning, a cluster of nuts (arecoides = Areca-like)

arena-

referring to sand (arenarius)

areol-

with an aereole, pitted (areolatus)

arg-

referring to silver (argentea / argentatum / argophyllus = silver-leaved / argyraeus)

argut-

sharp, pointed (argutus)

arist-

referring to a beard (hairy, bristly) (aristatus / aristosus)

arma-

armed (armatus)

arom-

referring to odor (aromatica)

arrect-

erect (arrectus)

articul-

jointed, articulate (articulatus)

arund-

referring to a reed (Arundinaria, the giant native reed) (arundinaceus

arven-

referring to cultivation (arvensis)

ascendens

ascending

asper-

rough (aspera / asperata / asper / aspericaulis = rough-stemmed / asperrimus = very rough)

assimil-

like unto (assimilis)

assurg-

sprawling, clambering (assurgens)

astr-

referring to a star (Astrocaryum, star-nut, referring to the markings on the seeds of this palm genus)

-astr(...)

like unto (liliastrum = like a lily)

ater

black

atr-

extreme, dark (atropurpurea = deep purple) (atratus = black / atrorubens = dark red / atrovirens = dark green)

attenu-

attenuated, drawn-out to a point (attenuatus)

attic-

Greek (atticum)

august-

august, noble, majestic (augusta)

aurant-

referring to the color orange (Citrus aurantifolia, the lime (go figger!); aurantifolia = orange-leaved / auranticus)

aure-

golden (aureus / aurespina = golden-spined)

auri-

referring to an ear (shape) (auritum / auriculatum)

austr-

southern, Australian (australis)

avi-

referring to a bird, birdlike (avium / aviculare)

axill-

referring to axils (axillaris)

azur-

referring to the color blue (azureum)