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Tuesday, July 14, 2015

Australia: A Wilderness of Wildflowers (Part 2)

Eremaea sp
Alexander Morrison National Park, between Jurien Bay and Coorow in Western Australia, is in two sections that barely touch each other.  The road through it - the one we followed on September 17, 2013 - travels along the edge of both sections, and most of the photographs in this second installment come from the eastern half.  The Kwongan habitat it protects is much the same, and on our visit the whole park, east and west, was ablaze with flowers.

Eremaea sp
Flowers covered both the bushes that gave structure to the heathland habitat - here, the orange blooms of Sticky Eremaea - and the ground beneath (in this photo, a stand of trigger plants).

Alexander Morrison National Park may be among the few in the world that have been saved by their own plant life.  The area is rich in poison peas (Gastrolobium spp), plants so toxic to livestock that the area was never cleared.

Compacted Featherflower (Verticordia densiflora)
Compacted Featherflower (Verticordia densiflora)
Compacted Featherflower (Verticordia densiflora)
The plants of the shrub layer included featherflowers (Verticordia spp) in abundance.  Verticordia has radiated into a huge number of species in Western Australia (with at least fifteen in the area of the park), each seemingly more beautiful and exotic-looking than the next.  All of them, at least to my knowledge, set off their flowers with the fringed ruff of sepals that gives them their common English name.  This beautiful example appears to be Compacted Featherflower (Verticordia densiflora), a widespread and variable southwestern species.

Verticordia ovalifolia
Verticordia ovalifolia
This one may be Verticordia ovalifolia, not yet in full bloom.

Verticordia sp
Verticordia sp
This peculiar-looking verticordia, obviously not at its floral best, might be Variegated Featherflower (V. huegelii), or just an odd-looking example of the next species.

Scarlet Featherflower (Verticordia grandis)
Scarlet Featherflower (Verticordia grandis)
Scarlet Featherflower (Verticordia grandis)
Certainly one of the most startling of the genus is the Scarlet Featherflower (Verticordia grandis), a fairly local plant of the Kwongan.  There are bright yellow verticordias too; you can check one of them out in an earlier post.

Though the verticordias were probably the showiest of the myrtles we saw flowering in Alexander Morrison, they were far from the only ones with dense and beautiful arrays of flowers.  I am not sure which this one is, but it looks like a featherflower without the fringe, so it may be a close relative.

Large-flowered Baeckea (Baeckea grandiflora)
Large-flowered Baeckea (Baeckea grandiflora)
Large-flowered Baeckea (Baeckea grandiflora), if I have identified it correctly, is a common and showy Kwongan species we had already seen many times.

Eremaea sp
Eremaea sp
Sticky Eremaea (Eremaea beaufortioides), another species I have featured here before, was particularly abundant in the park (as the photo at the top of this post shows).

Long-leaved Clawflower (Calothamnus longissimus)
Long-leaved Clawflower (Calothamnus longissimus)
Four species of Calothamnus have been recorded from the area.  Long-leaved Clawflower (C. longissimus) is a local Kwongan specialty.

Silky-leaved Bloodflower (Calothamnus sanguineus)
Silky-leaved Bloodflower (Calothamnus sanguineus), on the other hand, ranges along much of the southwestern coast.

Yellow Plume Grevillea (Grevillea eriostachya)
Yellow Plume Grevillea (Grevillea eriostachya)
Yellow Plume Grevillea (Grevillea eriostachya)
Yellow Plume Grevillea (Grevillea eriostachya)
On to the Proteaceae: the remarkable inforescences of Yellow Plume or Flame Grevillea (Grevillea eriostachya), borne on long, spindly branches, made an arresting addition to the otherwise rounded and compact-looking profile of the park's vegetation.

Grevillea shuttleworthiana
Grevillea shuttleworthiana
The displays of Grevillea shuttleworthiana were altogether more sedate.

Hooker's Banksia (Banksia hookeriana)
Hooker's Banksia (Banksia hookeriana)
Hooker's Banksia (Banksia hookeriana), a very local species, is a winter bloomer that seemed to have finished flowering, leaving behind only the dry remains of its floral columns.

Needle Tree (Hakea psilorrhyncha)
Needle Tree (Hakea psilorrhyncha)
Needle Tree (Hakea psilorrhyncha)
Hakeas vary tremendously in leaf shape and form.  Needle Tree (Hakea psilorrhyncha), another Kwongan specialty, belongs to a group of dry-adapted hakeas with simple, thickened leaves tipped (as the name implies) with needle-like points.

Pine-Cone Petrophille (Petrophile conifera)
We continue our Parade of Proteas with another limited-range species, the Pine-Cone Petrophile (Petrophile conifera)....

Sickle-leaved Coneflower (Isopogon linearis)
Sickle-leaved Coneflower (Isopogon linearis)
... and the Sickle-leaved Coneflower (Isopogon linearis), another Kwongan specialty, and a particularly beautiful one.

Blueboy (Stirlingia latifolia)
Filling out our array of proteas are less typical-looking plants: Blueboy (Stirlingia latifolia)...

Conospermum sp
... and the ever-present smokebushes (Conospermum spp).

Dampieria sp
As for flowers other than myrtles and proteas, we continued to see the purple-blue flowers of dampieras (Dampiera sp)...

...as well as a number of other things that I have failed to identify...

and a few I did figure out, including Golden Long-Heads (Podotheca gnaphalioides).

Xanthorrhoea sp
Xanthorrhoea sp
Grass-trees punctuated the heathland growth in many places along our route.  Based purely on range, this could be Xanthorrhoea drummondii.

The tiny object I am making such efforts to photograph here is a trigger plant (Stylidium sp).  I continued to find these plants, with their snap-trap pollination mechanisms, fascinating things.

Stylidium albolilacinum
Stylidium albolilacinum
Identifying, them, though, is a frustrating experience.  At least twenty species are known from the area around Alexander Morrison.  This one may be Stylidium albolilacinum, whose flowers range from white to violet (thereby confusing me still further).

Stylidium sp
Stylidium sp
Stylidium sp
As you can see, the flowers I photographed varied quite a bit in intensity of colour; are they just variants of the same species? 

Stylidium sp
Stylidium repens
These two, though, differ in shape and pattern as well as colour.  The lower one may be Matted Triggerplant (Stylidium repens), a widespread and common species.  Maybe.  Next time I come here (should I be so fortunate) I will try to include a botanist in my luggage.

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