(Scientific Name: Rudbeckia omega | Common Nicknames: The Ash-Bloom, The Inferno | Charles’s Ledger: Variable-F12)
Botanical Profile: The Ash-Bloom
Habitat: Grows exclusively on the remains of hosts claimed by the Omega Virus. It is the biological marker of an "Unclean Grave."
The Inferno Bloom: The petals are long, serrated, and graded from a fiery yellow at the base to a deep, blood-red at the tips. When a breeze catches the patch, it mimics the appearance of a flickering fire erupting from the ground.
The Void Center: A deep, obsidian-black central eye that absorbs light, symbolizing the finality and consumption of the Omega Strain.
The Iron Stalk: The stem is unnaturally strong, dark brown, and rigid—resembling charred rebar more than organic tissue.
Charles’s Note: "If the Clover is a receipt, the Cinder Susan is a warning label. It marks the ground that has stopped breathing. Two, three, five, seven... if the ground looks like it's on fire, keep walking. There is nothing left for you there."
Physical Characteristics: The Wilted Leaf
Wasted Appearance: The leaves are shriveled, gray-brown, and appear dead even as the flower blooms, representing the wasting effect of the Omega infection on the host.
Omega Aura: The soil around a Cinder Susan is biologically dead; no other flora (save for perhaps the Ever Dead Oak) can survive in its immediate shadow.
Smokeless Burn: The high mineral and carbon content in the stalks allows them to burn at extreme temperatures with almost zero smoke.
Performance Specs: Material Science
Ash Powder Deterrent: Grinding the petals produces a soot-like powder. This powder carries a scent that is biologically repulsive to almost all Alpha-mutated creatures. Sly-Kin use this to "scent-mark" zones they wish to keep predators out of.
High-Heat Fuel: The stalks are the most efficient fuel source in the Expanse for forging or high-heat cooking, though most survivors refuse to use them due to the stigma of "Omega-Taint."
Biological Quarantine: The presence of these flowers signals an active Dead Zone. If a patch expands, it indicates the underground spread of Omega contamination.
The Repulsion Scent: Any beast or monstrosity with a sense of smell must succeed on a DC 15 Wisdom saving throw to willingly enter a 10-foot radius of a concentrated Cinder Susan Ash Powder marker.
Omega Warning: A character who investigates a Cinder Susan patch (DC 10 Nature) can determine the approximate age of the "Unclean Grave" and whether the Omega infection is spreading in the local soil.
High-Heat Stalks: Using Cinder Susan stalks as fuel reduces the time required for metalworking or chemical distilling by 50%, but requires a DC 12 Charisma save to overcome the psychological "bad luck" stigma of using Omega-tainted materials.
The Dead Zone: Areas thick with Cinder Susans are treated as Level 1 Bio-Hazards. Prolonged exposure (over 1 hour) requires a DC 13 Constitution save to avoid becoming Fatigued.