Asteraceae tribe Vernonieae

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Most members of Vernonieae are herbs, subshrubs, or shrubs (Vernonia arborea

   Buchanan-Hamilton of tropical Asia may form trees to 33 m). They are characterized by discoid
   heads of bisexual florets with purple to pink or white corollas, calcarate anthers, attenuate,
   abaxially hirsutulous style branches stigmatic ± uniformly (rather than in two lines or bands)
   nearly to their tips, and pollen grains with regular, polygonal, patterns of ± spiny to smooth
   ridges. Centers of species concentration for the tribe are found in Africa, Madagascar, South
   America, and Antilles. In the flora, most species are found in the eastern and southern states
   of the United States. The plants are often associated with open, prairie or savanna-like
   areas.
apex shapeacute +
appendage shapeovate + and lanceolate +
array architecturecorymbiform +, paniculiform + and scorpioid +
base shapesagittate + and tailed +
body architecturesmooth +, nerved + and ribbed +
body external textureglabrous +, hirsutulous + and to strigillose +
body patternresin-gland-dotted +
branch habitstigmatic +
branch shapelance-linear + and lanceolate +
bristle architecturebarbellate +
bristle fragilitystouter +
bristle height or lengthshorter +
bristle lengthlonger +
calyculus count0 +
corolla architecturezygomorphic + and raylike +
corolla colorationwhite +, ochroleucous +, pink +, cyanic + and yellow +
cypsela architecturemonomorphic +
cypsela shapecolumnar +, clavate +, fusiform +, prismatic +, compressed + and beaked +
floret count0 +
floret reproductionbisexual + and fertile +
floret sizeenlarged +
glomerule arrangementaggregated +
head architecturepseudo-radiant-or-liguliflorous +
head architecture or shapediscoid +
head arrangementsingly + and in glomerules +
head reproductionhomogamous +
leaf architecturepetiolate +, sessile +, petioles + and winged +
leaf arrangementalternate +, subopposite + and opposite +
leaf positioncauline + and basal +
margin external texturescarious +
margin shapedentate +, entire +, lobed + and dissected +
pappus durationpersistent +
phyllary behaviourfalling +
phyllary durationpersistent +
phyllary external texture or internal textureherbaceous + and chartaceous +
phyllary fusiondistinct +
phyllary sizeunequal +
receptacle architectureepaleate +
receptacle external texturesetose +
receptacle relieffoveolate +
receptacle shapeflat + and convex +
sap colorationmilky +
scale fragilitystouter +
scale height or lengthshorter +
scale shapearistate +
scale widthnarrow +
series count2 + and 1 +
series positioninner +
style external texturehirsutulous +
whole organism life styleannual +, biennial +, perennial + and liana +