Original URL: http://www.colby.edu/info.tech/BI211/PlantFamilyID.html

Biology 211: Taxonomy of Flowering Plants

World Wide Flowering Plant Family Identification

Family Listing
Information About This Identification Process
Sample Data and Description of the Search Algorithm
CGI Source Code

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Select the characters that are present in the specimen being identified. Press Submit when ready to determine possible families. Pressing "Back" at the top of the window brings you back to this page keeping your character selections.

LIST OF CHARACTERS


Plant Habit

  1. Woody plants (excl. suffrutices)

  2. Herbaceous plants (incl. suffrutices)

  3. Aquatic plants, leaves floating or submerged

  4. Climbers, lianas

  5. Chlorophyll absent (parasites or saprophytes)

  6. Bulb present (monocots only)

  7. Milky juice present

  8. Spiny stems or leaves

  9. Tendrils present

 10. Cladodes or phyllodes (modified branches or petioles)



Vestiture

 11. Hairs glandular

 12. Hairs stellate (also 2-armed, branched and tufted)

 13. Hairs stellate (not 2-armed, branched and tufted)

 14. Hairs 2-armed or t-shaped, non-glandular

 15. Hairs branched

 16. Hairs tufted, non-glandular

 17. Hairs peltate or scale-like

 18. Hairs vesicular or bladder-like

 19. Hairs stinging

 20. Cystoliths present (dicots only)



Leaves

 21. Leaves opposite or verticillate

 22. Leaves alternate (excl. distichous monocots)

 23. Leaves distichous (monocots only)

 24. Leaves equitant (e.g. Iris)

 25. Leaves peltate

 26. Leaves not compound

 27. Leaves compound

 28. Leaves pinnately compound (4 or more leaflets)

 29. Leaves ternately compound (3 leaflets)

 30. Leaves palmately compound (4 or more leaflets)

 31. Venation pinnate or hardly visible in leaves or leaflets (incl. no. 30)

 32. Venation invisible or leaves 1-nerved (monocots only)

 33. Venation longitudinal in leaves or leaflets (incl. 3-nerved leaves)

 34. Venation palmate in leaves or leaflets

 35. Leaves or leaflets with entire margin (without any lobes or teeth)

 36. Leaves or leaflets lobed or divided

 37. Leaves or leaflets dentate, serrate, crenate, etc.

 38. Epidermis of leaf papillose (dicots only)

 39. Leaves with pellucid or glandular dots or lines

 40. Leaves with a ligule

 41. Stipules absent

 42. Stipules present (only the scars may be left)



Inflorescences

 43. Flowers solitary

 44. Inflorescence a raceme, simple and monopodial

 45. Inflorescence a spike, simple and monopodial

 46. Inflorescence a corymb, simple and monopodial

 47. Inflorescence an umbel, simple and monopodial

 48. Inflorescence a fascicle, simple and monopodial

 49. Inflorescence a head, simple and monopodial

 50. Inflorescence simple and sympodial (cyme, dichasium etc.)

 51. Inflorescence compound, sympodial or monopodial (panicle, thyrsus etc.)



Flowers

 52. Flowers bisexual

 53. Flowers unisexual

 54. Flowers actinomorphic

 55. Flowers zygomorphic or irregular

 56. Receptacle small (ovary superior)

 57. Receptacle enlarged, united with the ovary, totally or partially covering it

 58. Receptacle enlarged, totally or partially free from the ovary (super. to inf.)

 59. Receptacle enlarged, conical or hemispherical (ovaries superior)

 60. Disc present (annular or separate glands)

 61. Disc absent

 62. Perianth segments 0

 63. Perianth segments 1

 64. Perianth segments 2

 65. Perianth segments 3

 66. Perianth segments 4

 67. Perianth segments 5

 68. Perianth segments 6

 69. Perianth segments more than 6

 70. Perianth of similar segments

 71. Perianth of calyx and corolla

 72. Sepals 0 (incl. a cupular calyx without lobes)

 73. Sepals 1

 74. Sepals 2

 75. Sepals 3

 76. Sepals 4

 77. Sepals 5

 78. Sepals more than 5

 79. Sepals all free from one another

 80. Sepals connate (at least two of them)

 81. Sepals imbricate or contorted

 82. Sepals valvate

 83. Petals 0 (incl. a cupular corolla without lobes)

 84. Petals 1

 85. Petals 2

 86. Petals 3

 87. Petals 4

 88. Petals 5

 89. Petals 6

 90. Petals 7

 91. Petals 8

 92. Petals 9

 93. Petals 10

 94. Petals more than 10

 95. Petals all free from one another

 96. Petals connate (at least two of them)

 97. Petals imbricate

 98. Petals contorted

 99. Petals valvate

100. Corona present, or scales in the throat

101. Anther 1, fertile

102. Anthers 2, fertile

103. Anthers 3, fertile

104. Anthers 4, fertile

105. Anthers 5, fertile

106. Anthers 6, fertile

107. Anthers 7, fertile

108. Anthers 8, fertile

109. Anthers 9, fertile

110. Anthers 10, fertile

111. Anthers more than 10, fertile

112. Stamens the same number as and opposite the petals or alternate with the sepals

113. Flowers obdiplostemonous

114. Anthers dorsifixed or ventrifixed

115. Anthers basifixed

116. Anthers introrse

117. Anthers extrorse

118. Anthers opening by longitudinal slits

119. Anthers opening by apical pores

120. Anthers opening by valves

121. Anthers 1-locular at anthesis

122. Stamens free from the corolla

123. Stamens inserted on the corolla

124. Filaments not connate

125. Filaments connate into 1 tube or bundle

126. Filaments connate into separate bundles

127. Anthers with a conspicuous appendage

128. Pollen coherent into pollinia or wax-like masses

129. Staminodia present (in male or perfect flowers only)

130. Gynophore

131. Styles absent, stigmas sessile

132. Styles more than 1, free (carpels connate)

133. Style 1, or styles more or less connate (carpels free or connate)

134. Style gynobasic

135. Carpel 1

136. Carpels 2 (free or united)

137. Carpels 3 (free or united)

138. Carpels 4 (free or united)

139. Carpels 5 (free or united)

140. Carpels more than 5 (free or united)

141. Ovary 1-locular (incl. apocarpae)

142. Ovary 2-locular

143. Ovary 3-locular

144. Ovary 4-locular

145. Ovary 5-locular

146. Ovary with more than 5 locules

147. Ovule 1 in each loculus

148. Ovules 2 in each loculus

149. Ovules more than 2 in each loculus

150. Carpels free from each other or carpel 1

151. Ovules parietal, carpels connate

152. Ovules axile, carpels connate

153. Ovules attached to central axis or ventrally if carpels free or if carpel 1

154. Ovules attached to the apex of the ovary

155. Ovules attached to the base of the ovary



Fruit

156. Fruit a capsule (incl. pod, follicle etc.)

157. Fruit a nut (incl. achene, loment, schizocarp etc.)

158. Fruit fleshy (berry, drupe, pome)

159. Fruit with 1 seed

160. Fruit with 2 seeds

161. Fruit with more than 2 seeds

162. Fruits with wings

163. Fruits with hairs for dispersal by wind

164. Fruits with retrorsely barbed, hook-like or glochidiate hairs

165. Fruits with spines and hooks

166. Seeds with wings

167. Seeds with hairs

168. Arillus or aril-like organs present

169. Embryo straight

170. Embryo curved

171. Cotyledons folded or crumpled

172. Seeds without endosperm

173. Seeds with endosperm

174. Endosperm ruminate



Distribution

175. African

176. Asian

177. Australian and Oceanian

178. European

179. North American

180. South American