Liverwort thallus shape

This feature concerns the general shape of the Liverwort plant body (thallus), which is not differentiated into leaves, stems, and roots. Liverworts (class Hepaticae, order Bryophyta) are nonvascular plants related to hornworts and mosses.

narrow, with regular dichotomous divisions

flat with round pinna

short and thick, with single dichotomous division

elongate, feather-like to bushy

APPW key feature pages

Aroid or aster?
Aroids only - spadix and spathe type
Asteraceae only - floret composition
Asteraceae only - ray floret petal size and shape
Duckweed (Lemnaceae) frond roots
Duckweed (Lemnaceae) frond shape
Flowering plant family
Flower color
Flower pedicel
Flower symmetry
Geographic origin
Inflorescence - number of flowers
Inflorescence - peduncle
Inflorescence position
Flowering plant or non-flowering plant
Bract(s) subtending inflorescence
Inflorescence type
Leaf apex
Leaf base
Leaf - degree of dissection
Leaf dissection - type
Leaf distribution along stem
Floating leaf shape in profile
Leaf heterophylly
Number of leaflets or lobes
Leaf length (leaf or leaflet blade)
Leaf margin
Leaf midvein spines
Leaf overall morphology
Leaf or petiole bands or septae
Leaf phyllotaxis (arrangement along stem)
Leaf presence
Leaf shape - rosette plants
Leaf shape
Leaf thickness
Leaf venation
Leaf attachment to stem
Petiole length
Petiole presence
Petiole spines
Petiole morphology
Liverwort thallus shape
Size and appearance of petals, tepals, or perianth segments
Perianth constitution
Perianth fusion
Number of petals, tepals, or perianth segments
Bulb or corm morphology
Plant appearance (attached plants only)
Plant attachment
Plant habit - aquatic
Plantlet production
Plant structures for spreading vegetatively
Plant type
Plant type - flowering plants
Root type and presence
Spongy aerenchyma
Stem appearance
Stem presence
Stem surface ribbing
Stem shape in cross section
Stipules present?
Trapping organs