Gentiana villosa (striped gentian) Gentianaceae ((4) 4 4 1) 366 -- closed Gentianaceae (gentian) -- Bartonia, Centaurium, Gentiana, Gentianella, Gentianopsis, Halenia, Obolaria, Sabatia

Gentianella amarella (northern gentian) Gentianaceae ((4) 4 4 1) 366

Gentianella quinquefolia (stiff gentian) Gentianaceae ((4-5) 4-5 4-5 1) 366 -- Gentianopsis crinita (fringed gentian) Gentianaceae ((4) 4 4 1) 366 -- upper lvs brdly lance or egg;OE sessile; moist mdws & low woods Geraniaceae (geranium) -- Erodium (stork's bill), Geranium (geranium)

Geranium bicknellii (Bicknell's geranium) 340 -- pale purple; seps w tip or awn; fl stalks 2x+ long as the calyx

Geranium carolinianum (Carolina geranium) 339 -- fls pale pink or pale purple; seps w tip or awn; stems & fl stalks hairy

Geranium columbinum 339 -- seps w tip or awn; fl stalks 2x+ long as the calyx

Geranium dissectum (geranium) 339 -- 15-20mm pets, blue-violet; seps w tip or awn; lvs more cleft than G maculatum

Geranium maculatum (wild geranium) 338 -- 12-18 mm pets, rose-purple;

Geranium molle (dove's foot crane's bill) 340 --sep w/out tip or awn;

Geranium nepalense -- much like G sibiricum but vigorously rhizomatous & w/ 2-fld peduncles; local in MA

Geranium pratense (meadow geranium) 339 -- fls blue-violet

Geranium pusillum (small-flowered crane's bill) 340 -- pale purple; sep w/out tip or awn; prostrate or weak-stemmed;

Geranium pyrenaicum (wild geranium) 341 -- sep w/out tip or awn;

Geranium robertianum (herb robert geranium) 339 -- OD; bright-pink or red-purple, entire pets

Geranium rotundifolium 340 -- Eurasian; rarely adventive; more rotund lvs cleft only to middle

Geranium sanguineum (geranium) 338 -- rare escape; very leafy stems, retuse pets & short stylar beak

Geranium sibiricum (siberian geranium) 339 -- fls lt pink w drk pink veins; purplish anthers, 5 red style forks; long fl stalks

Geranium sp. (geranium) Geraniaceae ((5) 5 10 1) Geum aleppicum (yellow avens) 228 -- lf stalk hairless; swamps & wet meadows

Geum canadense (white avens) (5 5 10-N 1) 227 -- white fls; pets as long as or longer than the sepals; 3 lflts at end, 2 small pairs lower on hairless lf stalk

Geum laciniatum (rough avens) 227 -- white fls; pets much shorter than the sepals; WT; moist or wet soil

Geum macrophyllum (big-leaved avens) 228 -- lf stalk hairless; 1 big shallowly lobed lflet at end; moist woods & rocky ledges

Geum rivale (water avens) 228 -- yellow fls; seps purple or crimson; hairy lf stalk; swamps & wet meadows

Geum sp. (avens) Rosaceae (5 5 10-N 1) --

Geum urbanum 228 -- lf stalk hairy

Geum vernum (spring avens) 227 -- yellow or white fls; lf stalk hairless; one lobed lf at end; plant not hairy; rich woods

Geum virginianum (cream-colored avens) 227 -- yellowish-white petals; lf stalk hairy Gilia rubra (standing cypress) ((5) (5) 5 1 hypo) 392 -- scarlet outside, yellow inside fls; ADE linear

Glaucium flavum (horned poppy) Papaveraceae (4 2 N 1) 064 --

Glaux maritima (sea mlkwort) Primulaceae ((5) 5 5 1) 202

Glechoma hederacea (gill over the ground) Lamiaceae ((5) (5) 2+2 1) 421 -- blue or violet; OT blunt, fan; stem creeping at base

Gleditsia aquatica Caesalpiniaceae (5 5 5-8 1 perf/unisex; peri) 256

Gleditsia triacanthos (honey locust) Caesalpiniaceae (3-5 3-5 5-8 1 perf/unisex; peri) 257 --

Glyceria acutiflora (mannagrass) 706 -- spikelets linear-cylindric; straight, dense infl; lemma acute; projecting palea

Glyceria borealis (northern mannagrass) 706 --spikelets linear-cylindric; lemmas glabrous & shining between the veins; rachilla not hairy

Glyceria canadensis (rattlesnake mannagrass) 707 -- open infl; drooping branches; flower clusters fat, heavy, green

Glyceria fluitans 707 -- spikelets linear-cylindric; rachilla not hairy

Glyceria grandis (American mannagrass) 708 -- open infl; lowest 2 scales white, others purple; soft, fat stem toward base

Glyceria melicaria (northeastern mannagrass) 707 -- kernelly-looking infl

Glyceria obtusa (coastal mannagrass) 707 -- cone-like, dense infl, branches all point upward

Glyceria septentrionalis (floating manna-grass) 706 -- spikelets linear-cylindric; panicle; hugs stem; rachilla very curved, hairy glumes

Glyceria sp. (manna-grass) Poaceae 706-708 -- 3-fld, ample panicles

Glyceria striata (meadow manna-grass) 708 -- open infl; spikelets ovate or oblong; branches droop; fl scales veined w/ purple

Glyceria x laxa (mannagrass) 707 -- open infl; like G canadensis but often taller w/ larger more diffuse infl Gnaphalium helleri (Heller's cudweed) 565 --

Gnaphalium macounii (Macoun's cudweed) 565 -- AE broad at base & clasp stem

Gnaphalium obtusifolium (sweet everlasting or fragrant cudweed) 565 -- AE lvs fat linear, narrowed at base; curry smell

Gnaphalium purpureum (purple cudweed) 565 --

Gnaphalium sp. (cudweed) Asteraceae/Inuleae --

Gnaphalium uliginosum (low cudweed) 565 -- fl heads brownish in center; AT fat linear Goodyera pubescens (downy rattlesnake plantain) Orchidaceae (2+1z 3 1-2 3) 817 -- fls in a dense, cylindrical spike; BE

Goodyera repens (dwarf rattlesnake plantain) Orchidaceae (2+1z 3 1-2 3) 818 -- spike one-sided; lvs small, only to 1" w/ broad white veins; BE

Goodyera tesselata (checkered rattlesnake plantain) Orchidaceae (2+1z 3 1-2 3) 818 -- loose spiral; BE dull grn&criss-crsed w paler lined network

Gratiola aurea (yellow hedge hyssop) Scrophulariaceae/Gratioleae ((5) (5) 2 1 stigmas 2) 439 -- fls bright yellow; OE sessile

Gratiola neglecta (clammy hedge hyssop) Scrophulariaceae/Gratioleae ((5) (5) 2 1 stigmas 2) 439 -- fls yllwish/cream; lobes wh tube yellowish; OT

Gratiola virginiana (Virginia hedge hyssop) Scrophulariaceae/Gratioleae ((5) (5) 2 1 stigmas 2) 439 --

Grindelia squarrosa (curly top gumweed) Asteraceae/Astereae 532 -- bracts very sticky & bent downward/AF oblong, often clasping

Guizotia abyssinica (Niger seed) Asteraceae/Heliantheae 503 --

Gymnocarpium dryopteris (oak fern) Aspleniaceae 022

Gymnocarpium robertianum (limestone oak fern) Aspleniaceae 022 -- Gymnocladus dioicus (Kentucky coffee tree) Caesalpiniaceae (5 5 10 1 perf/unisex; peri) 256

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