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Transcript
BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 1 of 9 Summary of Plants learned in this lab: Family Genus Species ANACARDIACEAE Rhus virens AQUIFOLIACEAE Ilex decidua AQUIFOLIACEAE Ilex vomitoria ASTERACEAE Liatris mucronata ASTERACEAE Melampodium leucanthum BORAGINACEAE Heliotropium tenellum FAGACEAE Quercus buckleyi GENTIANACEAE Centaurium texense LAMIACEAE Hedeoma drummondii NOLINACEAE Nolina lindheimeriana NOLINACEAE Nolina texana ORCHIDACEAE Spiranthes lacera PASSIFLORACEAE Passiflora tenuiloba PRIMULACEAE Samolus ebracteatus POACEAE Bouteloua hirsuta RUTACEAE Thamnosma texana * not native to Texas BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th ANACARDIACEAE Rhus virens Fall 2005 Page 2 of 9 Evergreen Sumac, Tobacco Sumac virens = “green” shrub or small tree to 3m or more tall leaf arrangement? leaf surface? ASTERACEAE Melampodium leucanthum leucanthum = “white-flowered” Black-foot Daisy, Rock Daisy This plant gets its common name from the way the old stigma looks on the ray flowers (don’t look at me, I didn’t name it). leaves are sessile leaf shape? BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 3 of 9 BORAGINACEAE (Forget-Me-Not family) Heliotropium tenellum Pasture Heliotrope corollas funnelform tenellum = “tender, soft” leaf shape? how many petals? PASSIFLORACEAE Passiflora tenuiloba tenuiloba = “with narrow, slender lobes” Spread-lobe Passion-flower, Bird-wing Passion-flower growth habit? leaves are sessile This plant may have ocelli (small, yellowish dots that apparently act as egg mimics). The leaves of this plant are believed to have evolved this shape to copy the shape of the leaves on Berberis trifoliolata as a way to trick moths (your TA will explain further). BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 4 of 9 FAGACEAE (Oak or Beech family) Quercus buckleyi Texas Red Oak, Spanish Oak, Spotted Oak, Rock Oak named for Samuel Buckley (1809-1884) state geologist and plant collector How would you describe this plant’s leaves? typical bark Do you remember what type of fruit an acorn is? ________________ POACEAE Bouteloua hirsuta hirsuta = “hairy” inflorescence branches usually 1-4 per main axis, usually 2.3-4cm long Hairy Grama BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 5 of 9 Dutchman’s Breeches, Texas Desert-rue RUTACEAE Thamnosma texana fruit a leathery, 2-lobed capsule; the two lobes resembling the inflated legs of a dutchman’s breeches leaves aromatic (like many plants in the Rutaceae family) ASTERACEAE Liatris mucronata mucronata = “mucronate, pointed” Narrow-leaf Gayfeather inflorescences spike-like, the heads densely-crowded leaf shape? leaf arrangement? BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th AQUIFOLIACEAE (Holly family) Ilex decidua Fall 2005 Page 6 of 9 Deciduous Holly, Possumhaw, Winterberry decidua = “deciduous” persistent red or orange fruits are often conspicuous during winter months shrub leaf shape? fruits poisonous Which leaf goes with I. decidua and which with I. vomitoria?? AQUIFOLIACEAE Ilex vomitoria vomitoria = “emetic” Yaupon Holly, Indian Blackdrink, Emetic Holly The leaves contain caffeine and were used by Native Americans to make a ceremonial drink called “black drink”. During religious festivals they drank large amounts during purging ceremonies. leaf shape? BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 7 of 9 PRIMULACEAE (Primrose family) Samolus ebracteatus ebracteatus = “without bracts” Limerock Brookweed leaf shape? basal rosette of leaves ORCHIDACEAE (Orchid family) Spiranthes lacera lacera = “torn” Slender Ladies’-tresses, Green-lip Ladies’-tresses leaves all basal, not always persisting until flowering flowers in spiral row; lip white-marked with broad, green or yellowish-green stripe in center BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th Fall 2005 Page 8 of 9 NOLINACEAE Nolina texana leaves narrow, elongate, almost rounded-triangular in cross-section Sacahuista, Bunch-grass leaf margins smooth or with distant teeth flower stalks 30-60cm tall (seen in spring) flowers are poisonous and potentially fatal to livestock NOLINACEAE Nolina lindheimeriana Devil’s Shoestring, Lindheimer’s Nolina leaves narrow, elongate, flat with smooth surface and serrulate margins flower stalks 60-180cm tall (seen in spring) margin teeth directed forward, be careful ! there is a reason why it’s called Devil’s Shoestring Which stem crosssection matches with N. lindheimeriana and which with N. texana?? BIO 406D - Native Plants Packet #5 – Wild Basin – October 20th LAMIACEAE Hedeoma drummondii Fall 2005 Page 9 of 9 Drummond’s Hedeoma, Drummond’s False Pennyroyal leaf shape? GENTIANACEAE (Gentian family) Centaurium texense Texas Centaury, Lady Bird’s Centaury Common name is for Mrs. Lyndon B. Johnson (Lady Bird), who made a special effort to collect seeds of this species and plant them along her ranch’s airfield runway. leaf arrangement? leaf shape?
