Turkish Towel

Wednesday, February 24th, 2010

Chondracanthus exasperatus

Color: Red (Dark red to purple when young, red to yellow when older, can be iridescent when wet.)
Shape: Irregular Blade
Texture: Bumpy
Size: 12–32”
Zone: Low intertidal and subtidal
Range: Alaska to Mexico

Description: Broad blade, irregular edges. Small discoid holdfast, one or more blades per hold fast. Covered with small bumps (papillae).

Edibility: Used to make carrageenan

Distinctive characteristics:

Collection notes: Can be used like a loofah

Phylum: Rhodophyta (Red Algae)
Previous names: Gigartina exasperata, Gigartina californica, Gigartina radula
Similar species: Mastocarpus papillatus

Dulse, Red Ribbon, Red Kale

Wednesday, February 24th, 2010

Palmaria mollis

Color: Red
Shape: Irregular Blades
Texture: Smooth
Size: 8–10”
Zone: Intertidal to Subtidal
Range: Alaska to Mexico

Description: The name “palmaria” comes from the hand-shaped arrangement of the blades. Irregular blades are attached to a small disc-shaped holdfast.

Edibility: Versatile. Leathery when dried. High in iron and other vitamins and minerals. Eaten in Scandinavia and the British Isles by people and sheep.

Distinctive characteristics:

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Palmaria palmata forma Mollis, Rhodymenia palmata
Similar species: Palmaria pinannatifida, Rhodymenia pertusa, Palmaria callophylloides, Palmeria hecatensis

Rainbow-leaf, Splendid Iridescent Seaweed

Wednesday, February 24th, 2010

Mazzaella splendens

Rainbow-LeafRainbow-Leaf in Flowing WaterPhoto Showing Iridescence of Rainbow-LeafExtreme Close Up of Rainbow-Leaf's Smooth SurfaceRainbow-Leaf's Rubbery Texture

Color: Red (Purpleish, Iridescent)
Shape: Sheet
Texture: Smooth
Size: Up to 3’+
Zone: Intertidal to Subtidal
Range: Alaska to Mexico

Description: This seaweed appears sheet-like but is an irregular blade attached to a very short, small stipe and holdfast. It is distinguished by its iridescent sheen when wet.

Edibility: Edible

Distinctive characteristics: Used to make carrageen

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Iridaea cordata, Iridae splendens, Gigartina cordata, Iridophhycus splendens, Iridophycus cordatum, Iridophycus fulgens
Similar species: Several similar species including Mazzaella linearis and Mazzaella cornucopiae

Red Spaghetti

Wednesday, February 24th, 2010

Gracilariopsis sjoestedtii

Red Spaghetti in the WaterRed Spaghetti Close UpRed Spaghetti with Green String Lettuce

Color: Red
Shape: Branching, Tube-like
Texture: Smooth
Size: Up to 3’
Zone: Intertidal
Range: British Columbia to Mexico

Description: Small, disc-shaped holdfast with round, noodle-like branches. Grows attached to small rocks or buried in the sand.

Edibility: Edible

Distinctive characteristics: Used to make agar agar.

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Gracilaria sjoestedtii
Similar species: Gracilariopsis lemaneiformis Gracilaria verrucosa, Gracilaria pacifica, Neoagardhiella baileyi

Dead Man’s Fingers, Sea Sac

Wednesday, February 24th, 2010

Halosaccion glandiforme

Color: Red, Brown, Green (Dark Purple-Red to Golden Brown to Yellow-Green)
Shape: Pod-like
Texture: Smooth
Size: Up to 8”
Zone: Intertidal
Range: Alaska to California

Description: These elongated, pod-shaped sacs are filled with seawater with a bubble of gas trapped at the top. Clusters grow on rocks, secured by a small disc-shaped holdfasts.

Edibility: Edible

Distinctive characteristics: If you squeeze them, they will squirt water. However, the water is needed for the seaweed to survive when the tide is out.

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Ulva glandiformis
Similar species:

Sarcodiotheca gaudichaudii

Wednesday, February 24th, 2010

Sarcodiotheca gaudichaudii

Sarcodiotheca gaudichaudii at low tideSarcodiotheca gaudichaudiiSarcodiotheca gaudichaudii

Color: Red
Shape: Branched
Texture: Bumpy, Bushy
Size: Up to 1’+
Zone: Intertidal to Subtidal
Range: Alaska to Mexico

Description: This bright red seaweed can look tree-shaped, with longer branches at the bottom tapering to shorter branches at the top, around a central axis. It has a disc-shaped holdfast and a warty texture.

Edibility:

Distinctive characteristics:

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Neoagardhiella baileyi, Agardhiella tenera
Similar species: Gracilariopsis sjoestedtii (Red Spaghetti)

Red Cellophane

Wednesday, February 24th, 2010

Porphyra cuneiformis

Red Cellophane and Holdfast at Low TideTransparent Red CellophaneRed Cellophane

Color: Red
Shape: Sheet
Texture: Smooth (Silky)
Size: Up to 6”+
Zone: Intertidal to Subtidal
Range: Alaska to California

Description: Similar to Nori, this seaweed is sheet-like with a tiny holdfast. It may appear ruffly and grow in clusters. It is very thin and the texture is smooth and silky.

Edibility: Edible

Distinctive characteristics:

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Porphyra miniata forma cuneiformis, Porphyra miniata var. cuneiformis

Similar species: Porphyra abyssicola, Porphyra amplissima, Porphyra miniata, Porphyra tenuissima, Porphyra perforata, Porphyra abbottae

Bleach Weed

Wednesday, February 24th, 2010

Prionitis lanceolata

Color: Red (Purple)
Shape: Branching
Texture: Smooth
Size: 10–15”
Zone: Intertidal
Range: Alaska to Mexico

Description: Bleach weed is narrow at the base, then branches into flat blades, fringed irregularly with small blade-lets that seem to be attached at an angle with the main blade rather than flush. The holdfast is disc-shaped.

Edibility:

Distinctive characteristics: Smells like bromine.

Collection notes:

Phylum: Rhodophyta (Red Algae)
Previous names: Gelidium lanceolatum, Zanardinula lanceolata
Similar species: