Flora of the PCT: Desert Wildflowers Part II

We’ve finally made it 700 (702.2 to be exact) miles through the desert and could not be more excited for the snow to come!  This section of desert tends to wear on people and for good reason.  The sun and heat are relentless and there are so many miles of burn. 

As grueling as these burn areas may be, they’re are also beautiful and full of life.  It’s easy to notice the towering burned trees, not as easy to notice some of the dwarf flowers like desert calico (Loeseliastrum matthewsii) and cushion cryptantha (Cryptantha circumscissa). 

Desert calico
Cushion cryptantha

Many desert plants have trichomes, or hair on their leaves and/or stems.  Some, like desert calico and cushion cryptantha, are spiny and unfriendly to the touch. Others, like two-color phacelia (Phacelia bicolor) and creamcups (Platystemon californicus) are more wooly and soft to the touch. 

Two-color phacelia
Creamcups
While trichomes peak my tactile interest, they also serve a purpose. The hairs can restrict insect movement and herbivory on leaves. They also reduce the rate of transpiration, or water loss, by reducing the amount of air that’s able to flow across the leaf surface. 


There are over 50 species of Lupinus in Southern California which is very exciting for a lupine lover like myself. These flowers are one of the first to repopulate an area after fire and bring some much needed color to the landscape. 



One of the most exciting finds in this section was this butterfly mariposa lily (Calochortus venustus).  These flowers are endemic to California, meaning they’re native and growth is restricted to particular areas. 

Butterfly mariposa lily

The desert mariposa lily (Calochortus kennedyi) is native to California, but not endemic. They are common in the Southwestern US and come in a yellow and orange variety. See Part 1 for orange.

Desert mariposa lily
Clarkia are difficult to capture on a good day with my iPhone due to their small nature and the wind. But they’re beautiful and also uncommon so we just have to deal with the poor quality. 

Elegant clarkia

Elegant clarkia (Clarkia unguiculata) and two-lobe clarkia (Clarkia biloba) can most easily be distinguished by their flower petal shape. Elegant clarkia petals are paddle shaped while two-lobe clarkia have heart shaped tips. 

Two-lobe clarkia
Very few days passed that we didn’t come across a species of Indian paintbrush (Castilleja).  In fact there are so many species of Indian paintbrush and lupine that I could spend six months trying to identify individual species. But there are miles to be made and just not enough time for that. 

This is a particularly red Indian paintbrush. I wish I could give an explanation as to why it’s so red, if anyone knows I’d love to hear! This genus of flowers are pretty incredible. Not only are they capable of growing in unforgiving landscapes, they do so with very small leaves. So how do they photsythesize and get nutrients you may ask?


Castilleja species are parasitic plants. Their roots have tubes called haustoria that absorb moisture and nutrients from other plant roots it comes in contact with. 
There are many species of Penstamon, another species that seems to be one of the first to colonize recently burned sections.

Showy penstemon
Showy penstemon of a pink variety
 

This wishbone bush (Mirabilis laevis) is in the same genus and Colorado 4 o’clock identified in Part 1.  They are a wonderful pop of color in areas dominated by Joshua trees and sagebrush.

Wishbone bush

In our time out here I’ve only spotted this single red-rayed alpinegold (Hulsea heterochroma).

Red-rayed alpinegold

Scale bud (Anisocoma acaulis) is very common in the Southern California desert. It also happens to be the only known/identified species of its genus. 

Scale bud

This mountain beebalm (Monardella odoratissma) became more common as we approached Kennedy Meadows. 
Mountain beebalm
This flower has a wonderful smell and like all other members of the mint family, has a square stem. 

And last, but certainly not least beautiful, is this speckled fairyfan (Clarkia cylindrica). 

Speckled fairyfan
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Flora of the PCT: Desert Wildflowers Part I

We’re over halfway through the desert with the Mojave (real desert) left ahead. These first few hundred miles have been full of surprises- lots of water, plant and animal life.

California has had a good deal of precipitation this year, making for lighter packs and vibrant landscapes. There are more amazing smelling plants and beautiful wildflowers than I could have dreamed of. 


Two of several wonderful smelling Ceanothus species.


Delphinium for days!

Here’s what I thought all 700 miles of desert would look like…

Joshua tree Yucca brevifolia


Chaparral yucca Hesperoyucca whipplei


California barrel cactus Ferocactus cylindraceus


Beavertail cactus Opuntia basilaris

Silver cholla Cylindropuntia echinocarpa


Strawberry hedgehog cactus Echinocereus engalannii


Kingcup cactus Echinocereus triglochidiatus

Panamint liveforever Dudleya saxosa


Canyon liveforever Dudleya cymosa


Ocotillo Fouqureria splendens

and other Dr. Suess like plants. I love cacti and succulents, but was truly unaware of how diverse the desert would be. This is high desert with elevations ranging from about 3,000-9,000 feet. We’ve experienced relentless sun and exposure followed by snow and conifers. 

There have been some incredible views, but I have been enchanted by the wildflowers. Everyday the flowers change, there are new species mixed in with the old and many yet to be identified.


Colorado four o’clock Mirabilis multiflora


Bush poppy Dendromecon rigida

Flatbud prickly poppy Argemone munita

Fremont’s monkeyflower Mimulus fremontii

Wild canterbury bells Phacelia minor

Fremont’s phacelia Phacelia fremontii

California milkweed Asclepias californica

Bitterroot Lewisia rediviva

Woolly daisy Eriophyllum wallaccei

Winding mariposa lily Calochortus flexuosus

Desert mariposa lily Calochortus kennedyi

Twincrest onion Allium bisceptrum

Pitted onion Allium lacunosum

Chinese houses Collinsia concolor

Sticky monkeyflower Mimulus aurantiacus

Pink sand verberna Abronia umbellatta

Dwarf rockcress Boechera parishii

Desert willow Chilopsis linearis

Goosefoot violet Viola purpurea

Mountain phlox Phlox austromontana

Cold desert phlox Phlox stanburyi

California flannelbush Fremontodendron californicum

Sandblossoms Linanthis parryae

Panamint mountain lupine Lupinus magnifricus

Bajada lupine Lupinus concinnus 

Stinging lupine Lupinus hirsutissimus