PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Dianella caerulea Sims
Family Phormiaceae
Common name: Blue Flax-lily

Dianella caerulea Sims APNI*

Description: Perennial herb tufted and solitary, or mat-forming; roots fibrous.

Leaves to 75 cm long; sheath conduplicate, a third to ± completely occluded; blade 3–25 mm wide.

Inflorescence exceeding foliage; cymules expanded to contracted, 3–25-flowered. Perianth whitish to dark blue or blue-green; outer tepals 7–11.5 mm long, 5–7-veined; inner tepals 6.3–10.5 mm long, 3–5-veined. Stamens with filament swellings 1–3 mm long, yellow; anthers yellow-brown.

Berry 7–12 mm long.


Illustration
D.Mackay

Flower
Photo L.L. Lee

Flowering: spring–summer.

Distribution and occurrence:
NSW subdivisions: NC, CC, SC, NT, CT, NWS, CWS
Other Australian states: Qld Vic. Tas.
AVH map***

Text by K. L. Wilson
Taxon concept: Flora of NSW vol 4 (1993); based on R. Henderson (1987), Flora of Australia vol. 45.

 Key to the varieties 
1Leaf sheath one- to two-thirds occluded distally, Y-shaped in cross section in that region2
Leaf sheaths more than two-thirds occluded distally, ± biconvex in cross section in that region3
2Stems ± condensed, scales few proximally; no extravaginal shoots; perianth mid- to dark blue. Plant tufted, solitary, to 0.5 m high; stems short, leafy, touching or up to 60 cm apart. Cymules ± expanded, fewer than 10-flowered. Perianth mid- to dark bluevar. caerulea
Stems conspicuously elongated, scaly for most of their length; extravaginal shoots developing distally with age; perianth greenish white to bright blue. Plant tufted, solitary, to 1.3 m high; stems elongating, with scales for most of their length, touching or up to 10 cm apart. Cymules ± expanded, 3–6-flowered. Perianth greenish white to blue
                       Back to 1
var. producta
3Leaves strongly glaucous; true stems <10 cm long; inflorescence narrow-cylindrical in outline, interrupted. Plant tufted, solitary to gregarious, to 0.8 m high; stems short, touching or up to 30 cm apart. Cymules contracted, few-flowered. Perianth creamy-green to pale bluevar. cinerascens
Leaves not glaucous; true stems to 1.8 m long; inflorescence from conical to narrow-cylindrical in outline, continuous or interrupted
                       Back to 1
4
4Stems scaly for most of their length; extravaginal shoots produced distally. Plant tufted, solitary, to 1.8 m high; stems elongating, with scales for most of their length. Cymules expanded or contracted, few-flowered. Perianth pale to mid-blue, often with green streaks externallyvar. assera
Stems leafy for most of their length; no extravaginal shoots
                       Back to 3
5
5Leaf sheaths not minutely papillose or pubescent; plants forming mats to 2 m diam.; mature leaves subequal in size at several nodes near middle of stem; perianth dark bronze-green to blue-green. Plant mat-forming with mats to 2 m diam., to 1.3 m high; stems elongating, with a few scales below several subequal leaves. Cymules many-flowered, contracted. Perianth dark bronze-green to blue-greenvar. petasmatodes
Leaf sheaths minutely but densely pubescent or papillose; plants forming tufts usually <0.5 m diam.; mature leaves increasing in size upwards; perianth pale to dark blue
                       Back to 4
6
6Aerial shoots adjacent or up to 30 cm apart, to 0.5 m tall. Plant tufted, solitary, to 0.5 m high; stems elongating somewhat, with scales then leaves increasing in size upwards, to 30 cm apart. Cymules ± expanded, 3–5-flowered. Perianth pale bluevar. protensa
Aerial shoots ± touching, to 1.3 m high. Plant tufted, solitary, to 1.3 m high; stems elongating, ± adjacent, with scale leaves then leaves increasing in size upwards. Cymules expanded to contracted, many-flowered. Perianth very pale to mid-blue
                       Back to 5
var. vannata

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET