e-Key v3 - Ke<span id="jodit_selection_marker_1706534163314_7033970258531794" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>y to Urtic<span id="jodit_selection_marker_1706534163314_4015164750787048" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Plants with stinging hairs, at least on the inflorescences and petioles
 002
b
  • Plants completely without stinging hairs
 002
Backtrack a
  • Leaves opposite
 Urtica
b
  • Leaves alternate
 002
Backtrack a
  • Stipules free, lateral
  • Shrubs or small trees with soft wood
 Obetia
b
  • Stipules fused, intrapetiolar
  • Woody climbers or erect, short-lived or perennial herbs
 002
Backtrack a
  • Woody climbers with adventitious or axillary roots from climbing stems
  • Stinging hairs mostly restricted to petioles and inflorescences
  • Female perianth with tepals accrescent, becoming fleshy and orange or red in fruit
  • Stipules soon deciduous
 Urera
b
  • Erect, short-lived or perennial herbs, not climbing and without adventitious or axillary roots from the stems
  • Usually with stinging hairs on all aerial parts of plant
  • Female perianth membranous in fruit
 002
Backtrack a
  • Female perianth of 3 ± completely connate tepals (sometimes also with 1 minute free tepal, forming a 1-sided cover on the ovary or achene), stinging hairs often longer than 5 mm and very dense
 Girardinia
b
  • Female perianth of 4 free, very unequal tepals
  • Stinging hairs mostly shorter than 5 mm, moderately dense to sparse
 Laportea
Backtrack a
  • Leaves opposite
 002
b
  • Leaves alternate
 002
Backtrack a
  • Flowers all free, not enclosed in involucre
  • Male flowers with 2-4 stamens
  • Stipules fused, interpetiolar
 Pilea
b
  • Flowers enclosed in an involucre
  • Male flowers with only 1 stamen
  • Stipules free, lateral
 Droguetia
Backtrack a
  • Stipules absent
  • Leaves with entire margin
  • Very delicate herbs
 Parietaria
b
  • Stipules present, lateral and free
  • Leaves entire or toothed
  • Delicate to coarse herbs
 002
Backtrack a
  • Flowers all free, none enclosed in an involucre of bracts
 002
b
  • Flowers enclosed in an involucre of bracts
 002
Backtrack a
  • Male flowers with 4 or 5 stamens
  • Female flowers with a tubular perianth
  • Annual or perennial herbs or shrubs
 Pouzolzia
b
  • Male flowers with 1 stamen
  • Female flowers without a perianth
  • Delicate annual herbs
 Didymodoxa
Backtrack a
  • Coarse herbs
  • Lobes of involucre much longer than flowers
 Forsskaolea
b
  • Delicate herbs
  • Lobes of involucre much shorter than flowers
 Droguetia

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